Turnover in services (sts_os_t)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Czech Statistical Office

Time Dimension: 2018-A0

Data Provider: CZ1


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)

For any question on data and metadata, please contact: EUROPEAN STATISTICAL DATA SUPPORT


1. Contact Top
1.1. Contact organisation

Czech Statistical Office

1.2. Contact organisation unit

Services Statistics Department (52)

1.5. Contact mail address

Czech Statistical Office
Na padesátém 81
100 82 Praha 10
Czech Republic

2. Metadata update Top
2.1. Metadata last certified 28/03/2019
2.2. Metadata last posted 28/03/2019
2.3. Metadata last update 28/03/2019

3. Statistical presentation Top
3.1. Data description

Services turnover, excluding VAT.
Turnover is published in the form of an index (not absolute figures) as an indicator of the economic cycle.

3.2. Classification system

NACE Rev. 2.

3.3. Coverage - sector

Activities covered: NACE Rev. 2 Divisions 45, 46, 68, 69, 70, 71, 73, 74, 77, 78, 79, 80, 81, 82, Sections H, I, J.

No size class is excluded from the survey.

3.4. Statistical concepts and definitions

Services turnover as defined in EC 1503/2006: turnover excluding VAT - comprises invoices issued by the observation unit during the reference period. Turnover refers to flows during the calendar month.

3.5. Statistical unit


3.6. Statistical population

All market enterprises with main activity in NACE Rev. 2 Divisions 45, 46, 68, 69, 70, 71, 73, 74, 77, 78, 79, 80, 81, 82, Sections H, I, J. All size classes are included.

The frame is the business register, which is regularily updated with demographic changes.
An overview on the structure of the population below represents the number of active units.

Services total 522 987
3.7. Reference area

Czech Republic.

3.8. Coverage - Time

Year 2000-present, with exception of NACE 58, 59, 60, 62 and 63 which are only year 2005-present.

3.9. Base period

Base year and reference year 2015.

4. Unit of measure Top

Index (%).

5. Reference Period Top

Calendar month (exception - quarter for NACE 46).

6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Act No. 89/1995 Coll. on the state statistical service of June 15, 1995, amended by Act No. 220/2000 Coll. and Act No. 411/2000 Coll.

Council Regulation (EC) No 1165/98 of 19 May 1998 concerning short-term statistics amended by the Regulation (EC) No 1158/2005 of the European Parliament and of the Council.

Full wording of Act No. 89/1995 Coll.
6.2. Institutional Mandate - data sharing

Data sharing with international organisations: Eurostat, OECD.

7. Confidentiality Top
7.1. Confidentiality - policy

The principle of protection of individual data is assured by the law on protection of personal data and the Act No. 89/1995 Coll. as amended, which implies an active approach to confidentiality. The detailed rules  are specified in the internal CZSO Directive No. 1/2012, which content is seen as confidential.

7.2. Confidentiality - data treatment

Data are only published down to an activity and size level at which they are not confidential. Data allowing direct or indirect identification of individual enterprise can only be published under written permission of all related subjects. The parameters for primary confidential data determination are confidential.

8. Release policy Top
8.1. Release calendar

The Catalogue of Products containing Calendar of News Releases for the year is published at the end of the preceding year. The data are part of Services News Release and Services Time Series.

8.2. Release calendar access

Release calendar is available at the CZSO website.

Catalogue of Products
8.3. Release policy - user access

Data are released, according to the Release Calendar, at 9 a.m. on the CZSO web site; no external user has prior access to the data before general release. Data are available at the same time for government and for public use; there is no pre-release access to data.

Data are regularly transmitted to Eurostat, shortly after national News Releases.

9. Frequency of dissemination Top

Transmission to Eurostat: monthly (with exception of NACE 46), quarterly.

National dissemination: monthly time series, quarterly News Release.

10. Accessibility and clarity Top
10.1. Dissemination format - News release

Quarterly News Releases (Services in Czech and English) - commentary on observed development accompanied by tables and graphs. They are published on the website of the Czech Statistical Office.

News Releases: Services
10.2. Dissemination format - Publications

No paper publications.

Time series are published monthly on the CZSO website.

Tables produced:

Monthly value and volume year–on-year indices (neither seasonally adjusted nor calendar adjusted data).
Monthly value and volume indices (2015 = 100) (neither seasonally adjusted nor calendar adjusted data, calendar adjusted data, calendar and seasonally adjusted data).
Level of breakdown: 2-digit and selected 3-digit headings of CZ-NACE.

Time Series: Services (not seasonnally adjusted)
Time Series: Services (Public database)
10.3. Dissemination format - online database

Data are available in our Public database.

Level of breakdown: 2-digit and selected 3-digit headings of CZ_NACE.

Time Series: Services (Public Database)
10.4. Dissemination format - microdata access

Microdata are not available to users.

10.5. Dissemination format - other

Time series are sent to Eurostat. Special formats are available to users upon request.

10.6. Documentation on methodology

An elementary description of methodology is given on the CZSO website.

The whole process of data production is driven by internal documentation (Technical projects and the Statistical Metadata System) to which CZSO employees have access.

10.7. Quality management - documentation

The whole process of data production is driven by internal documentation (Technical project and the Statistical Metadata System) to which all interested parties have access.

Audit reports including all the test and analysis carried out within the audit are stored and the public parts are available on request (see also quality management).

Key documents

11. Quality management Top
11.1. Quality assurance

The key components of the quality assurance are the following:
1. Strategic documents of the CZSO: Mission, Vision and Priorities of the CZSO, Quality commitment, Priority tasks defined for each year .
2. Irregular methodological audits represents an important tool in quality control. Audits are usually carried out by expert group comprising of internal and external experts (NA experts, representatives of universities, ministries etc.).
3. Important aspects and procedures of quality management within statistical production process are documented in by internal Statistical metadata system, including so-called Technical projects, event. by instructions for surveyors that are available for every statistics produced.

Key documents
11.2. Quality management - assessment

- The indicator is relevant to various group of users.

- Concerning accuracy, some problems are caused by misclassification; response rates are reasonable, especially at the time of revisions.

- Release deadlines allow to meet requirements of both EU legislation and other users' requirements. All News releases are published on time.

- There are no major problems with comparability and coherence of the indicator.

12. Relevance Top
12.1. Relevance - User Needs

1. External users: Eurostat, OECD, Ministry of Industry and Trade, Czech National Bank, professional associations, media, general public.
2. Internal users: Quarterly National Accounts Department.
The CZSO primarily tries to fulfill its commitments towards the European Commission, however, generally we tries to deal with the requirements of all users equally.

Unmet user needs: Users would like to have more detailed data, i.e. data on sales by 4-digit CZ-NACE activity or even more detailed, geographical breakdown, absolute values of an indicator. These requests are not satisfied due to survey methodology, capacity and financial limits.

12.2. Relevance - User Satisfaction

No users satisfaction surveys are carried out, however, we are constantly in contact with different groups of users, e.g. ministries, Czech National Bank, different associations (e.g. Association of small and medium sized Enterprises and Crafts of the Czech Republic), internet users etc.

12.3. Completeness

The Czech Republic provides Eurostat with all data required by the STS Regulation.

13. Accuracy Top
13.1. Accuracy - overall

-The sampling error in the data is not systematically measured, but believed to be negligible.
-The non-sampling errors are small and are mainly due to misclassification and other problems among small units.
-The first estimates are generally not biased. The results are final after the annual revision (in the second quarter of the following year).

13.2. Sampling error

The sampling error is estimated to be relatively small. For CV´s see section 13.3.

13.3. Non-sampling error

General problems:
1. Overcoverage and undercoverage is caused by high degree of misclassification of small units, especially natural persons and legal persons without employees, which are not VAT payers.
2. Non-response - see below for details. Non-responding units are re-contacted several times by e-mail, phone or mail.
3. Short deadlines sometimes force the respondents to submit data from unfinished book-keeping or estimates, which then leads to later revisions.
4. Demographic changes (mergers, splits, births and deaths) in reporting units and in the population as a whole are reported late.















Respons rate














Coefficinet of variation














14. Timeliness and punctuality Top
14.1. Timeliness

Data are published approximately 40 calendar days after the end of the reference month. Data for the reference month are provisional. Final data for the whole calendar year are published in the first half of the following year. Data for NACE Rev. 2 Division 46 are nationaly published with other data from the quarterly survey, approximately 75 calendar days after the end of the reference quarter (data are transmitted to Eurostat 60 days after the end of the reference quarter).

All questionnaires for the whole year are sent to the reporting units at the beginning of the year (January). Units are required to reply by the 15th calendar day after the end of the reference month (15th day after the end of the reference quarter for the quarterly survey). The survey (for the year) is closed approximately four months after the end of the reference year.

14.2. Punctuality

Releases delivered on time: 100 %.

15. Coherence and comparability Top
15.1. Comparability - geographical

Data are fully comparable.

15.2. Comparability - over time

Time series are comparable over time.

15.3. Coherence - cross domain

Data from the monthly survey can be compared with the quarterly estimates and with the results of the structural business survey (SBS). Differences are due to methodology, mainly because the monthly survey focuses on the y-o-y index.

Coherence is assisted by use of the Business Register and a database coordinating main activity of enterprises over all surveys.

15.4. Coherence - internal

There are no problems regrading internal consistence of the time series in question.

16. Cost and Burden Top

Turnover is surveyed on the questionnaire SP 1-12 (common with retail trade). The questionnaire is sent to a sample of aproximately 12,2 thousand service businesses. Respondent burden for services enterprises is estimated on 12 thousand hours per year. Costs of the CZSO for the indicator are estimated as 11 thousand hours per year.

17. Data revision Top
17.1. Data revision - policy

The system of regular revisions is briefly described on the CZSO website.

Data revisions follow the Revision Policy of the CZSO, which represent one of the key documents of the office. It is accessible via CZSO website in both Czech and English.

Methodological changes are announced at the time of the change, major changes in advance.

Revision calendar is published on the CZSO website.

The same revision policy (for all types of revision: routine revisions, major revisions, non-scheduled revisions) is applied to data released nationally and transmitted to Eurostat.

Revised data are published on the same dates as published data.

Key documents
Revision Policy of the CZSO
Catalogue of Products
17.2. Data revision - practice

Monthly Revisions: When data for February of the year Y are released data for January of the year Y are revised. Main reasons here are specific issues related to the start-up of tasks for the new reference period (partial exchange of units of the sample, increased non-response, updates of registers (basis for the sampling) – the vast changes carried out during the year).

Quarterly Revisions: As the need may be revisions of monthly and quarterly data for the last elapsed quarter are carried out. Simultaneously, revisions of previous periods of the reference year may also be performed. All these ordinary revisions are released once a quarter elapsed along with the appropriate Time series for the first month of the current quarter. The revisions are based on knowledge and more accurate data from quarterly tasks.

Annual Revisions: 1st annual revision of monthly estimates for all reference periods of the last elapsed year (Y) is released along with the appropriate Time series for April. The revisions are based on further knowledge and more accurate data acquired during the year. Data released in this revision are considered to be finalised data.

Size of revisions depends on the sector and usually are under 5 %.

18. Statistical processing Top
18.1. Source data

Type of source: Statistical survey (SP 1-12)

Frame on which the source is based: Business Register (RES)

Sample or census: Stratified sample.

Criteria for stratification: Stratification is by main activity (CZ NACE) and number of employees. proportional-to-sales sampling

Threshold values and percentages

Employee size classes: 0-19, 20-49, 50-99, 100 and more.
CZ-NACE strata: 45.1+45.3+45.4, 45.2, 49.1+49.2, 49.3, 49.4, 49.5, 50, 51, 52.29, 52.21+52.22+52.23, 52.24+52.10, 53, 55, 56, 58, 59, 60, 61, 62, 63, 68.1+68.2, 68.3, 69.1, 69.2, 70.1, 70.2, 71.1, 71.2, 73.1, 73.2, 74.1+74.2+74.3, 74.9, 77.2, 77.11, 77.3+77.12, 78.1, 78.2, 78.3, 79, 80, 81.1, 81.2, 81.3, 82.1,82.2+82.3, 82.9.

Strata with 50 and more employees are exhaustive. For the lower size classes proportional-to-sales random sampling is used, with the following sampling rates (percentages of units sampled):


0-19 employees

20-49 employees
















































































Frequency of updating the sample: A new sample is drawn every year and updated every month (only exhaustive strata). Units selected in the sample stay in the sample for approximately 2 years, then are replaced by other units, if possible (rotation scheme of the sampling – 50% exchange).

18.2. Frequency of data collection

Data for the current month of the current year are collected monthly. Data for all months of the previous year are collected once at the beginning of the survey of the reference year for reporting units that were not included in the previous year’s sample (or that did not reply for the whole previous year).
Data for NACE Rev. 2 Division 46 are collected quarterly.

Collected data refers to the full reference period.

18.3. Data collection

Questionnaire SP 1-12 is sent to all selected reporting units in selected service activities (units that are selected for the first time in the sample or those that did not reply in the preceding year receive an additional annex – Entry Questionnaire).
Questionnaire P 3-04 is a quarterly questionnaire for units in selected activities and is the source for the data on NACE Rev. 2 Division 46.

Data are collected by electronic, web and postal questionnaires. Non-responding units are contacted by mail, e-mail or phone and can be sanctioned.

18.4. Data validation

The electronic form of questionnaire contains built-in logical controls that draw respondent's attention to possible errors.
Data are then entered to the database using specific software (DANTE) with built-in logical controls. When the DANTE software indicates a possible error, the statistician entering data to the database contacts the respondent with the aim to correct/validate data.
Further plausibility and consistency checks are performed by statisticians during data compilation.

18.5. Data compilation

Missing data for the previous year are estimated from administrative data, missing data for the current year are calculated by the average year-on-year development in the stratum to which the unit belongs.

Turnover is grossed-up to the population using imputation. Grossed-up results are used only to calculate indices.

The year-on-year index is calculated from grossed up results and then chained to the base year. The methodology is based on a Laspeyres index. Turnover of the base year is used as the weight for each strata.

The files are converted to SDMX using internally developed application.

18.6. Adjustment

The value index is deflated using an appropriate price index to produce a volume index.

Seasonal and working day adjustment is performed on the following series using JDemetra+ software (TRAMO-SEATS method):
Totals - H+I+J+L+M+N
NACE Sections - H, I, J, L, M, N
NACE Divisions - G45, H49, H50, H51, H52, H53, I55, I56, J58, J59, J60, J61, J62, J63, M69_M702, M71, M73, M74, N77, N78, N79, N80, N82
3-digit NACE - G45_X_G452, N812

For details on seasonal and working day adjustment please see the annex, which refers to the situation as of 2018.

Seasonal Adjustment Metadata Template - Services

19. Comment Top

Not applicable.

Related metadata Top

Annexes Top
Seasonal Adjustment Metadata Template - Services
Full wording of Act No. 89/1995 Coll.
News Releases: Services
Time Series: Services (Public Database)
Time Series: Services (not seasonnally adjusted)
Time Series: Services (Public database)
Key documents
Key documents
Catalogue of Products
Key documents
Revision Policy of the CZSO
Catalogue of Products