Reference metadata describe statistical concepts and methodologies used for the collection and generation of data. They provide information on data quality and, since they are strongly content-oriented, assist users in interpreting the data. Reference metadata, unlike structural metadata, can be decoupled from the data.
Inland waterway (IWW) transport statistics provides information on the volume and performance of freight transport on EU inland waterway network. They are reported on the basis of the "territoriality principle" which means that each country reports the loading, unloading and movements of goods that take place on its national territory, irrespective of country of origins of undertakings or place of first loading and final unloading.
Data provision obligation includes:
annually: goods transport by type of goods, by nationality of vessels and by type of vessel as well as container transport by type of goods;
quarterly: goods and container transport by nationality of vessels.
In addition, the legislation foresees voluntary annual data on vessel traffic. Voluntary annual data on the transport of dangerous goods and the number of accidents as well as goods transport by port of loading and port of unloading and goods transport by type of cargo has been agreed with the reporting countries.
The full data provision obligation includes:
Table I1: Goods transport by type of goods (annual data); Table II1: Transport by nationality of vessel and type of vessel (annual data); Table II2: Vessel traffic (annual data - optional); Table III1: Container transport by type of goods (annual data); Table IV1: Transport by nationality of vessels (quarterly data); Table IV2: Container transport by nationality of vessels (quarterly data); Table V1: Goods transport (annual data).
In addition to the regulatory data collection there is a voluntary data collection of:
Table A2: Transport of dangerous goods by inland waterways (annual data); Table A3: Number of inland waterways accidents (annual data); Table A4: Goods transport by port of loading and port of unloading (annual data); Table A5: Goods transport by type of cargo (annual data).
3.2. Classification system
Country and NUTS codes
Territorial units like reporting country and regions for loading/unloading are coded according to NUTS classification for those units covered by NUTS Regulatiion and to ISO 3166 for the rest (e.g. territorial units outside EU). The used version of NUTS always corresponds to the version in use and no conversion to previous version is required. For instance, NUTS 2006 is used for 2008 to 2011 data, NUTS 2010 for 2012 to 2014 data, NUTS 2013 for 2015 to 2017, NUTS 2016 for 2018 to 2019 and NUTS 2021 for 2020 until next NUTS Regulation.
The level of detail is either NUTS0 – for reporting country – or NUTS2 (basic regions, 4 digits) – for regions. When using ISO 3166 and 4-digits level coding is required (e.g. for regions outside EU), the two-digit ISO code followed by “ZZ” is used.
Goods classification
Prior to 2007, the types of goods reported as being transported by inland waterways were those defined by NST/R (Standard Goods for Transport Statistics). In 2007 only, the type of goods has been reported according either to the NST-2000 classification or to the NST/R classification. From 2008 onwards, only the NST2007 classification is valid as set out in Commission Regulation 1304/2007 amending Regulation 1365/2006 with respect to the establishment of NST2007 as the unique classification for transported goods in certain transport modes.
The minimum detail required is at the 2-digit level. Following a decision at the Working Group meeting held in October 2013, countries can provide their data (on voluntary basis) at the 3-digit level of the NST2007 classification
Dangerous goods are classified according to the European Agreement Concerning the International Carriage of Dangerous Goods by Inland Waterways (ADN). The classes are the following:
ClassDenomination
1 Explosive substances and articles 2 Gases 3 Flammable liquids 4.1 Flammable solids, self-reactive substances and solid desensitised explosives 4.2 Substances liable to spontaneous combustion 4.3 Substances which, in contact with water, emit flammable gases 5.1 Oxidising substances 5.2 Organic peroxides 6.1 Toxic substances 6.2 Infectious substances 7 Radioactive material 8 Corrosive substances 9 Miscellaneous dangerous substances and articles
3.3. Coverage - sector
Volume and performance of freight transport on EU inland waterway network on the basis of the "territoriality principle" which means that each country reports the loading, unloading and movements of goods that take place on its national territory, irrespective of nationality of vessels or place of first loading and final unloading of goods.
3.4. Statistical concepts and definitions
The definitions covering the main concepts used in this domain are:
Navigable inland waterway: A watercourse, no part of the sea, which by natural or man-made features is suitable for navigation, primarily by inland waterway vessels. This term covers navigable rivers, lakes, canals and estuaries.
Inland waterway vessel: A floating craft designed for the carriage of goods or public transport of passengers, which navigates predominantly in navigable inland waterways or in waters within, or closely adjacent to sheltered waters or areas where port regulations apply.
Nationality of the vessel: The country in which the vessel is registered.
Inland waterways transport: Any movement of goods using inland waterways vessels, which is undertaken wholly or partly in navigable inland waterways.
National inland waterways transport: Inland waterways transport between two ports of a national territory irrespective of the nationality of the vessel.
International inland waterways transport: Inland waterways transport between two ports located in different national territories.
Transit inland waterways transport: Inland waterways transport through a national territory between two ports both located in another national territory or national territories provided that in the total journey within the national territory there is no trans-shipment.
Inland movement: any movement of goods and/or passengers to and from inland ports connected by water routes which may be made navigable by one or more lock structures.
Types of vessels:
Self-propelled barge. Any powered inland waterways freight vessel, other than self-propelled tanker barges.
Barge not self-propelled. Any unpowered inland waterways freight vessel, other than not self-propelled tanker barges. This category includes towed, pushed and pushed-towed barges.
Self-propelled tanker barge. A self-propelled barge intended for the transport of liquids or gases in fixed tanks.
Tanker barge not self-propelled. A barge not self-propelled intended for the transport of liquids or gases in fixed tanks.
Other goods carrying vessel. Any other known or unknown kind of inland waterways freight vessel intended for carrying goods not defined in the previous categories.
Seagoing vessel. A vessel other than those, which navigate predominantly in navigable inland waterways or in waters within, or closely adjacent to, sheltered waters or areas where port regulations apply.
Containers: A freight container means an article of transport equipment:
Of a permanent nature and accordingly strong enough to be suitable for repeated use;
Specially designed to facilitate the carriage of goods by one or more modes of transport, without intermediate reloading;
Fitted with devices permitting its ready handling, particularly its transfer from one mode of transport to another;
So designed as to be easy to fill and empty;
Having a length of 20 feet or more.
The size of containers is reported according to four categories:
20 Foot ISO containers (length of 20 feet and width of 8 feet);
40 Foot ISO containers (length of 40 feet and width of 8 feet);
ISO containers over 20 feet and under 40 feet in length;
ISO containers over 40 feet long.
Containers smaller than 20 feet are reported under Category 1.
Containers of unknown size are reported under Category 3.
Inland waterways accidents: specific, identifiable, unexpected, unusual and unintended external event caused by, or in connection with, the operation of an inland waterways vessel resulting in an inland waterways casualty or incident which occurs at a particular time and place, without apparent cause but with marked effect.
By definition suicides are excluded, as they are a deliberate act. Because of their importance, suicide statistics should be collected separately. Terrorist and criminal acts are excluded.
Inland waterways accidents involving the transport of dangerous goods: An inland waterways accident involving a vessel carrying any of the classes of dangerous goods defined by the ADN classification
Inland waterway traffic: any movement of an IWT vessel on a given IWT network. When a vessel is being carried on another vehicle, only the movement of the carrying vehicle (active mode) is taken into account.
Inland waterway journey: any movement of an IW vessel from a specified point of origin to a specified point of destination.
Tonne
Unit for measuring the weight of goods transport equivalent to 1000 kilograms.
The weight to be taken into consideration is the gross-gross weight of goods. The weight taken into consideration is equivalent to the total weight of the goods and packaging and the tare weight of equipment such as containers, swap bodies and pallets. When this tare-weight is excluded, the weight is gross weight.
Tonne-km
Unit for measuring the goods transport equivalent to one tonne of goods transported over a distance of one kilometre. For the purpose of reporting the tonne-km performance only the distance travelled on navigable inland waterways has to be taken into account.
TEU
Unit for measuring the container size equivalent to twenty feet unit.
TEU-km
Unit for measuring the goods transport by containers equivalent to one TEU transported over a distance of one kilometre. For the purpose of reporting the TEU-km performance only the distance travelled on navigable inland waterways has to be taken into account.
Vessel-km
Unit for measuring the vessel traffic equivalent to the movement of a vessel over a distance of one kilometre. For the purpose of reporting the vessel-km performance only the distance travelled on navigable inland waterways has to be taken into account.
The statistical units for inland waterways transport are harbour master’s offices of inland waterway ports. Data on transport refer to all movements of goods on vessels with domestic and foreign flags in inland waterways.
3.6. Statistical population
All arrived or departed vessels in the inland waterway transport on a national territory over one year, irrespective of their country of origins or place of first loading and final unloading.
3.7. Reference area
Navigable inland waterways on national territory.
3.8. Coverage - Time
Data on are covered from 2005 onwards.
3.9. Base period
Not applicable.
Data is disseminated using the following units of measure:
1000T: Thousands of tonnes;
MIO_TKM: Millions of tonnes/km (the transport of one tonne by inland waterways over one kilometre);
TEU: Twenty-foot Equivalent Unit (a unit of volume used in maritime transport statistics equivalent to a 20-foot ISO container );
1000 TEU_KM: Thousands of TEUs/Km (the transport of one twenty-foot equivalent unit over one kilometre );
VES_MOV: Vessel movements (in number);
VES_KM: Thousands of vessels/Km (the number of movement of an IWT vessel over one kilometre. The distance taken into account is the distance actually run. Movements of unladed vessels are included. In a convoy, each unit is counted as a vessel).
In the framework of Regulation (EU) 2018/974, Member States have to transmit their data as soon as possible and not later than five months after the end of the relevant period of observation.
For annual datasets (Mandatory: I1, II1, III; Voluntary: A2, A3, A4, A5, II2, Simplified: V1), the deadline is end of May of the year after the reference year (e.g. 2019 data to be provided by end of May 2020).
For quarterly datasets (IV1 and IV2), the deadlines are as follows:
1st - August of Year Y;
2nd - November of Year Y;
3rd - February of Year Y+1;
4th - May of Year Y+1.
6.1. Institutional Mandate - legal acts and other agreements
Commission Regulation (EC) No 425/2007 of 19 April 2007 implementing Regulation (EC) No 1365/2006 of the European Parliament and of the Council on statistics of goods transport by inland waterways.
National level:
Annual Implementation Plan of Statistical Activities of the Republic of Croatia;
Official Statistics Act (Official Gazette, No. 25/20 and 155/23);
Programme of Statistical Activities of the Republic of Croatia.
6.2. Institutional Mandate - data sharing
Not applicable.
7.1. Confidentiality - policy
European level:
Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.
National level:
Official Statistics Act (Official Gazette, No. 25/20 and 155/23);
Ordinance on the access to confidential statistical data;
Ordinance on Conditions and Terms of Using Confidential Statistical Data for Scientific Purposes.
7.2. Confidentiality - data treatment
Port-to-port data is considered confidential and is not disseminated.
8.1. Release calendar
Release calendar contains the review of publications planned to be issued in current year and by the end of May for next year, which depends on when the processing of a particular statistical survey can be finished and on whether it is feasible to make a particular kind of publication or not. Data on IWW transport statistics is published quarterly 45 days after the reference quarter.
In line with the Community legal framework and the European Statistics Code of Practice Croatian Bureau of Statistics disseminates statistics on IWW transport respecting professional independence and in an objective, professional and transparent manner in which all users are treated equitably. Main results of IWW transport statistics are available free of charge to all users. At the release data on IWW transport statistics is available to all users at the same time.
IWW transport data are published quarterly 45 days after the reference quarter and annual publication of detailed data 8 months after the end of the reference year.
The conditions under which certain users can access microdata are regulated by The Ordinance on the Conditions and Manner of Use of Statistical Data for Scientific Purposes.
10.5. Dissemination format - other
Statistics in Line – quarterly data on traffic in IWW ports at the level of the Republic of Croatia.
Annual detailed data - goods transport by type of transport, type of goods, type of dangerous goods, type of cargo and annual data on traffic of goods by harbour masters offices of inland waterways.
The data on quality in CBS database of quality information (DBQI) is under development.
11.1. Quality assurance
The main tool for the systematic quality assessment and quality management is the CBS database on quality information (DBQI). The DBQI has in first stage the Basic analytical tool for comparative analyses of quality indicators and later will contain Advanced analytical tool for comparative analyses of quality indicators.
11.2. Quality management - assessment
An organisational structure and tools are in place to deal with quality. There are procedures in place to plan, monitor and improve the quality of the statistical processes. Procedures based on quality reporting are in place to internally monitor product quality. Results are analysed regularly and improving actions are undertaken, if needed (for example after obtaining annual summary results and mirror checks reports from Eurostat). There is a regular and thorough review of the key statistical outputs.
12.1. Relevance - User Needs
The key users of IWW transport statistics are National Accounts Department, Eurostat, DG MOVE, State institutions, enterprises, research and scientific community, journalists etc.
12.2. Relevance - User Satisfaction
No survey on user satisfaction has been conducted.
12.3. Completeness
The data collection on IWW transport statistics follows the provisions of the Regulation EU 2018/974. All variables in all datasets are provided including the majority of optional datasets.
13.1. Accuracy - overall
Overall accuracy of the IWW transport statistics data is good. The processing with implemented logical and computational control, plausibility checks as well as checks done before transmitting data to Eurostat provides a high accuracy of the data.
13.2. Sampling error
Not applicable.
13.3. Non-sampling error
Not applicable.
14.1. Timeliness
All the statistics required by the provisions of the Regulation EU 2018/974 are transmitted to Eurostat in deadlines prescribed by Regulation.
For annual datasets (Mandatory: I1, II1, III; Voluntary: A2, A3, A4, A5, II2, Simplified: V1), the deadline is end of May of the year after the reference year (e.g. 2019 data to be provided by end of May 2020).
For quarterly datasets (IV1 and IV2), the deadlines are as follows:
1st - August of Year Y
2nd - November of Year Y
3rd - February of Year Y+1
4th - May of Year Y+1
Difficulties to respect deadline for data transmission:
It is feasible to deliver datasets within required deadlines.
14.2. Punctuality
All IWW transport datasets are transmitted to Eurostat within deadlines specified in the Regulation EU 2018/974.
15.1. Comparability - geographical
The geographical comparability of HR data with other member states is very good.
15.2. Comparability - over time
Comparable data harmonized with the statistical standards in the European Union are available since 2005.
15.3. Coherence - cross domain
Quarterly results on traffic of goods in inland waterway ports are partly comparable with the quarterly survey on transhipment of goods in inland waterway ports.
15.4. Coherence - internal
After generating datasets for transmission to Eurostat additional checks are made between annual and quarterly datasets.
The response burden is put on shipping agents and vessel captains who in the official procedures of the arrivals and departures of vessels in inland waterways traffic enter data in electronic reporting using the "Inland Navigation Information System" – ISUP. Detected errors are cleared manually by CBS and some errors must be cleared by contacting data suppliers. There is additional burden for CBS on the subject of transit data which is not possible to collect through current survey but with the collaboration from Hungarian statistical office.
17.1. Data revision - policy
Provisional figures are not published in this survey and therefore regular revisions are not planned.
17.2. Data revision - practice
Provisional figures are not published in this survey and therefore regular revisions are not planned. Unplanned revisions caused by events that could not be predicted and that are impossible to prevent (subsequent changes in data sources or subsequently identified errors in previously submitted data) are generally disseminated as soon as possible.
18.1. Source data
Data source is "Inland Navigation Information System" – ISUP.
CBS collects transit data the collaboration from Hungarian statistical office.
Ministry of Maritime sea, transport and infrastructure delivers data on accidents.
18.2. Frequency of data collection
Monthly and annually.
18.3. Data collection
Monthly data on IWW transport of goods is transmitted to the Croatian Bureau of Statistics in electronic format from"Inland Navigation Information System" – ISUP.
Data on transit transport as well as data on transport accidents is delivered in electronic format.
18.4. Data validation
In statistical data processing, the CBS implements control of the data coverage for the purpose of checking the completeness of the submitted data. Logical-computational controls, data consistency between data sets and controls of used codes are checked at the lowest level of received data.
18.5. Data compilation
Data processing on the Survey Processor software enables automated creation of quarterly and annual datasets from processed and validated IWW transport data. The structure of the datasets is according to Regulation EU 2018/974.
18.6. Adjustment
Not applicable for IWW transport data collection.
No further comments.
Inland waterway (IWW) transport statistics provides information on the volume and performance of freight transport on EU inland waterway network. They are reported on the basis of the "territoriality principle" which means that each country reports the loading, unloading and movements of goods that take place on its national territory, irrespective of country of origins of undertakings or place of first loading and final unloading.
Data provision obligation includes:
annually: goods transport by type of goods, by nationality of vessels and by type of vessel as well as container transport by type of goods;
quarterly: goods and container transport by nationality of vessels.
In addition, the legislation foresees voluntary annual data on vessel traffic. Voluntary annual data on the transport of dangerous goods and the number of accidents as well as goods transport by port of loading and port of unloading and goods transport by type of cargo has been agreed with the reporting countries.
The full data provision obligation includes:
Table I1: Goods transport by type of goods (annual data); Table II1: Transport by nationality of vessel and type of vessel (annual data); Table II2: Vessel traffic (annual data - optional); Table III1: Container transport by type of goods (annual data); Table IV1: Transport by nationality of vessels (quarterly data); Table IV2: Container transport by nationality of vessels (quarterly data); Table V1: Goods transport (annual data).
In addition to the regulatory data collection there is a voluntary data collection of:
Table A2: Transport of dangerous goods by inland waterways (annual data); Table A3: Number of inland waterways accidents (annual data); Table A4: Goods transport by port of loading and port of unloading (annual data); Table A5: Goods transport by type of cargo (annual data).
9 May 2025
The definitions covering the main concepts used in this domain are:
Navigable inland waterway: A watercourse, no part of the sea, which by natural or man-made features is suitable for navigation, primarily by inland waterway vessels. This term covers navigable rivers, lakes, canals and estuaries.
Inland waterway vessel: A floating craft designed for the carriage of goods or public transport of passengers, which navigates predominantly in navigable inland waterways or in waters within, or closely adjacent to sheltered waters or areas where port regulations apply.
Nationality of the vessel: The country in which the vessel is registered.
Inland waterways transport: Any movement of goods using inland waterways vessels, which is undertaken wholly or partly in navigable inland waterways.
National inland waterways transport: Inland waterways transport between two ports of a national territory irrespective of the nationality of the vessel.
International inland waterways transport: Inland waterways transport between two ports located in different national territories.
Transit inland waterways transport: Inland waterways transport through a national territory between two ports both located in another national territory or national territories provided that in the total journey within the national territory there is no trans-shipment.
Inland movement: any movement of goods and/or passengers to and from inland ports connected by water routes which may be made navigable by one or more lock structures.
Types of vessels:
Self-propelled barge. Any powered inland waterways freight vessel, other than self-propelled tanker barges.
Barge not self-propelled. Any unpowered inland waterways freight vessel, other than not self-propelled tanker barges. This category includes towed, pushed and pushed-towed barges.
Self-propelled tanker barge. A self-propelled barge intended for the transport of liquids or gases in fixed tanks.
Tanker barge not self-propelled. A barge not self-propelled intended for the transport of liquids or gases in fixed tanks.
Other goods carrying vessel. Any other known or unknown kind of inland waterways freight vessel intended for carrying goods not defined in the previous categories.
Seagoing vessel. A vessel other than those, which navigate predominantly in navigable inland waterways or in waters within, or closely adjacent to, sheltered waters or areas where port regulations apply.
Containers: A freight container means an article of transport equipment:
Of a permanent nature and accordingly strong enough to be suitable for repeated use;
Specially designed to facilitate the carriage of goods by one or more modes of transport, without intermediate reloading;
Fitted with devices permitting its ready handling, particularly its transfer from one mode of transport to another;
So designed as to be easy to fill and empty;
Having a length of 20 feet or more.
The size of containers is reported according to four categories:
20 Foot ISO containers (length of 20 feet and width of 8 feet);
40 Foot ISO containers (length of 40 feet and width of 8 feet);
ISO containers over 20 feet and under 40 feet in length;
ISO containers over 40 feet long.
Containers smaller than 20 feet are reported under Category 1.
Containers of unknown size are reported under Category 3.
Inland waterways accidents: specific, identifiable, unexpected, unusual and unintended external event caused by, or in connection with, the operation of an inland waterways vessel resulting in an inland waterways casualty or incident which occurs at a particular time and place, without apparent cause but with marked effect.
By definition suicides are excluded, as they are a deliberate act. Because of their importance, suicide statistics should be collected separately. Terrorist and criminal acts are excluded.
Inland waterways accidents involving the transport of dangerous goods: An inland waterways accident involving a vessel carrying any of the classes of dangerous goods defined by the ADN classification
Inland waterway traffic: any movement of an IWT vessel on a given IWT network. When a vessel is being carried on another vehicle, only the movement of the carrying vehicle (active mode) is taken into account.
Inland waterway journey: any movement of an IW vessel from a specified point of origin to a specified point of destination.
Tonne
Unit for measuring the weight of goods transport equivalent to 1000 kilograms.
The weight to be taken into consideration is the gross-gross weight of goods. The weight taken into consideration is equivalent to the total weight of the goods and packaging and the tare weight of equipment such as containers, swap bodies and pallets. When this tare-weight is excluded, the weight is gross weight.
Tonne-km
Unit for measuring the goods transport equivalent to one tonne of goods transported over a distance of one kilometre. For the purpose of reporting the tonne-km performance only the distance travelled on navigable inland waterways has to be taken into account.
TEU
Unit for measuring the container size equivalent to twenty feet unit.
TEU-km
Unit for measuring the goods transport by containers equivalent to one TEU transported over a distance of one kilometre. For the purpose of reporting the TEU-km performance only the distance travelled on navigable inland waterways has to be taken into account.
Vessel-km
Unit for measuring the vessel traffic equivalent to the movement of a vessel over a distance of one kilometre. For the purpose of reporting the vessel-km performance only the distance travelled on navigable inland waterways has to be taken into account.
The statistical units for inland waterways transport are harbour master’s offices of inland waterway ports. Data on transport refer to all movements of goods on vessels with domestic and foreign flags in inland waterways.
All arrived or departed vessels in the inland waterway transport on a national territory over one year, irrespective of their country of origins or place of first loading and final unloading.
Navigable inland waterways on national territory.
In the framework of Regulation (EU) 2018/974, Member States have to transmit their data as soon as possible and not later than five months after the end of the relevant period of observation.
For annual datasets (Mandatory: I1, II1, III; Voluntary: A2, A3, A4, A5, II2, Simplified: V1), the deadline is end of May of the year after the reference year (e.g. 2019 data to be provided by end of May 2020).
For quarterly datasets (IV1 and IV2), the deadlines are as follows:
1st - August of Year Y;
2nd - November of Year Y;
3rd - February of Year Y+1;
4th - May of Year Y+1.
Overall accuracy of the IWW transport statistics data is good. The processing with implemented logical and computational control, plausibility checks as well as checks done before transmitting data to Eurostat provides a high accuracy of the data.
Data is disseminated using the following units of measure:
1000T: Thousands of tonnes;
MIO_TKM: Millions of tonnes/km (the transport of one tonne by inland waterways over one kilometre);
TEU: Twenty-foot Equivalent Unit (a unit of volume used in maritime transport statistics equivalent to a 20-foot ISO container );
1000 TEU_KM: Thousands of TEUs/Km (the transport of one twenty-foot equivalent unit over one kilometre );
VES_MOV: Vessel movements (in number);
VES_KM: Thousands of vessels/Km (the number of movement of an IWT vessel over one kilometre. The distance taken into account is the distance actually run. Movements of unladed vessels are included. In a convoy, each unit is counted as a vessel).
Data processing on the Survey Processor software enables automated creation of quarterly and annual datasets from processed and validated IWW transport data. The structure of the datasets is according to Regulation EU 2018/974.
Data source is "Inland Navigation Information System" – ISUP.
CBS collects transit data the collaboration from Hungarian statistical office.
Ministry of Maritime sea, transport and infrastructure delivers data on accidents.
IWW transport data are published quarterly 45 days after the reference quarter and annual publication of detailed data 8 months after the end of the reference year.
All the statistics required by the provisions of the Regulation EU 2018/974 are transmitted to Eurostat in deadlines prescribed by Regulation.
For annual datasets (Mandatory: I1, II1, III; Voluntary: A2, A3, A4, A5, II2, Simplified: V1), the deadline is end of May of the year after the reference year (e.g. 2019 data to be provided by end of May 2020).
For quarterly datasets (IV1 and IV2), the deadlines are as follows:
1st - August of Year Y
2nd - November of Year Y
3rd - February of Year Y+1
4th - May of Year Y+1
Difficulties to respect deadline for data transmission:
It is feasible to deliver datasets within required deadlines.
The geographical comparability of HR data with other member states is very good.
Comparable data harmonized with the statistical standards in the European Union are available since 2005.