Turnover in services (sts_os_t)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Statistical Office of Montenegro - MONSTAT.

Time Dimension: 2014-A0

Data Provider: ME1


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

Statistical Office of Montenegro - MONSTAT.

1.2. Contact organisation unit

Department of short-term statistics.

1.5. Contact mail address

IV Proleterske br. 2 , 81000 Podgorica Montenegro.

2. Metadata update Top
2.1. Metadata last certified 03/03/2017
2.2. Metadata last posted 03/03/2017
2.3. Metadata last update 03/03/2017

3. Statistical presentation Top
3.1. Data description

The purpose of the statistical survey on turnover in other services is the quarterly statistical monitoring of turnover (income from sale of goods and services) in service activities as well as the measuring of the dynamics of its change and as input for National accounts statistics. The quarterly compilation of the turnover index is intended for a simple monitoring of change flows in economic development. It is suitable for short-term observations and analyses of the economic development. Just like in other short-term conjunctive statistics, the basic purpose is not the level of a particular phenomenon but rather it’s dynamic of change. The Regulation on Short-Term Statistics (Annex D) foresees the monitoring of a major part of service activities, with the exception of retail trade for which a separate indicator exists.

3.2. Classification system

NACE Rev. 2

3.3. Coverage - sector

The survey on turnover in service sector includes all business entities (legal units, tradesmen and free lances) if their prevailing activity is one of the following:

G 45 Wholesale and retail trade and repair of motor vehicles and motorcycles

G 46 Wholesale trade, except of motor vehicles and motorcycles

H 49 Land transport and transport via pipelines

H 50 Water transport

H 51 Air transport

H 52 Warehousing and support activities for transportation

H 53 Postal and courier activities

I 55+I 56  Accommodation and food service activities

J 58 Publishing activities

J 59 Motion picture, video and television program production, sound recording and music publishing activities

J 60 Programming and broadcasting activities

J 61 Telecommunications

J 62 Computer programming, consultancy and related activities

J 63 Information service activities

L 68 Real estate activities

M 69 Legal and accounting services + M 702 Management consulting services

M 702 Consultancy activities Business and other management activity and communications and public relations

M 71 Architectural and engineering activities; technical testing and analysis

M 73 Advertising and market research

M 74 Other professional, scientific and technical activities

N 77 Rental and leasing activities

N 78 Employment activities

N 79 Travel agency, tour operator reservation services and related activities

N 80 Security and investigation activities

812 Cleaning activities

N 82 Office administrative, office support and other business support activities.

For sampling, classes are determined by number of employees:

Class 1: 0 – 9 employees

Class 2: 10 – 49 employees

Class 3: 50 – 249 employees

Class 4: >250 employees

The sample includes all companies in the class 3 and 4 and companies which have annual turnover higher than 5 000 000€. The rest is determined by random sampling.

3.4. Statistical concepts and definitions

Turnover comprises the totals invoiced by the observation unit during the reference period, and this corresponds to market sales of goods or services supplied to third parties. Turnover includes all duties and taxes on the goods or services invoiced by the unit with the exception of the VAT invoiced by the unit vis-a-vis its customer and other similar deductible taxes directly linked to turnover. Number of employees - defined as the total number of employees who work in the observation unit (including working proprietors, partners working regularly and unpaid family workers). Hours worked including working hours which employees are held in operating activities during the reporting quarter.

Number of employees - defined as the total number of employees who work in the observation unit (including working proprietors, partners working regularly).

3.5. Statistical unit

For services survey the reporting and observation unit are the same. Units of statistical observation and reporting for which data are provided, are enterprises with main activity in the Statistical Business Register is in Divisions: G, H, I, J, K, L, M, N, P,  Q, R and S NACE Rev.2.

3.6. Statistical population

The sample frame was based on the data from the Business Register of the Statistical Office of Montenegro and includes all active businesses in the areas of G, H, I, J, K, L, M, N, P, Q, R and S Nace Rev.2. Enterprises are excluded from the scope of entrepreneurs and businesses that have turnover = 0.

For sampling, classes are determined by number of employees:

Class 1: 0 – 9 employees

Class 2: 10 – 49 employees

Class 3: 50 – 249 employees

Class 4: >250 employees

The sample includes all companies in the class 3 and 4 and companies which have annual turnover higher than 5 000 000€. The rest is determined by random sampling.

Groups are determined according STS requirements

NACE Rev.2




Wholesale and retail trade and repair of motor vehicles and motorcycles



Wholesale trade, except of motor vehicles and motorcycles


49 do 53




Land transport and transport via pipelines



Water transport



Air transport



Warehousing and support activities for transportation



Postal and courier activities


55 + 56



58 do 63




Publishing activities



Motion picture, video and television programme production, sound recording and music publishing activities



Programming and broadcasting activities






Computer programming, consultancy and related activities



Information service activities


M69, M702, M71, M73, M74


The frame for identifying units for the population is Statistical Business Register. Frame for 2016 consists of 8 191 enterprises. Sample consists of 844 enterprises.

3.7. Reference area

The whole territory of Montenegro.

3.8. Coverage - Time

The other services data are available from 2010 year.

3.9. Base period

The base year is 2010.

4. Unit of measure Top

Turnover - in Euro.
Number of employees - counted numerically.
Changes compared to the previous periods - showed in percentage (%).

5. Reference Period Top

Data are collected in reference to period of quarter.

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

Legal basis for implementation of the other services survey is the Law on statistics and statistical system of Montenegro (”MNE Official gazette”, No. 18/12 from 30.03.2012.) and Annual plan of statistical surveys http://www.monstat.org/eng/page.php?id=9&pageid=9.

Implementation of the other services survey in Montenegro also relies on the following EU regulations: Council Regulation No 1165/98 of 19 May 1998 and the Regulation No 1158/2005 of the European Parliament and of the Council of 6 July 2005 (Short-term economic indicators and implementation).

6.2. Institutional Mandate - data sharing

Data of turnover are not yet transmitted to Eurostat. Data of employee and wages and salaries, in services, are transmitting to Eurostat.

7. Confidentiality Top
7.1. Confidentiality - policy

National legislation

According to the Law on Statistics and Statistical System of Montenegro, Article 54 the data collected, processed and stored for the purpose of official statistics shall be confidential, if it is on the basis of these data, either directly or indirectly identify reporting units which disclosing individual information.   

European legislation

Regulation (EC) No 223/2009 of the European Parliament and of the Council, of 11 March 2009, on the transmission of data subject to statistical confidentiality to the Statistical Office of the European Communities.

7.2. Confidentiality - data treatment

Confidential data are treated according to policy rules (see point 7.1). Data are nationally published only on the level at which they are not confidential. Individual data represent an official secret.

8. Release policy Top
8.1. Release calendar

Data are published on 48 days after the end of the observed period. Date of publication statements is defined in the Calendar of statistics of  MONSTAT.

8.2. Release calendar access

A statistical plan is published on the website.

A link to the MONSTAT website:


8.3. Release policy - user access

Other services data are published 48 days after the end of the reference period, on the MONSTAT website at 11 am. The data are published in a press release (Excel and Word), in the monthly statistical bulletin (Excel and Word) and as dynamic data (Excel). When a user submits a request for information that is not on the site, we respond to him through official procedures within 15 days.

9. Frequency of dissemination Top

Quarterly according to Calendar of Release.

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

New release are available on the MONSTAT website :


10.2. Dissemination format - Publications

The data are published in a press release (Excel and Word), in the monthly statistical bulletin (Excel and Word) and as dynamic data (Excel).

10.3. Dissemination format - online database

Gross data of turnover in services (2010=100) are available on web site:


10.4. Dissemination format - microdata access

Not available.

10.5. Dissemination format - other

On users’ request and on their behalf, statistics may provide the data and information obtained by (special) processing.

10.6. Documentation on methodology

Methodology of retail trade survey is available on MONSTAT website: http://www.monstat.org/userfiles/file/Ostale%20usluge/Others%20services_Methodology.pdf

10.7. Quality management - documentation

Quality report for other services survey exists but is not published.

11. Quality management Top
11.1. Quality assurance

MONSTAT has officially accepted the European Statistics Code of Practice. European Statistics Code of Practice in Montenegro is available on the website: http://www.monstat.org/eng/page.php?id=5&pageid=5.

For the systematic and standardized approach to quality, the Quality Management Framework was adopted by MONSTAT. Clear intention is expressed to take further steps towards full compliance with the European Statistics Code of Practice.

11.2. Quality management - assessment

Quality is monitored throughout all stages of data production, by the responsible statisticians, according to specifications for concrete surveys. Data collection, data capture and processing are usually subject to this monitoring (similarly as timeliness and punctuality).

In the framework of the organization of statistical surveys, selected quality aspects are part of preparing staff involved in statistical production.

12. Relevance Top
12.1. Relevance - User Needs

Main users of data are: Ministry of Finance, Ministry of Economy, Chamber of Commerce, research institutions, companies engaged in trade, statistics of National accounts, and other sectors inside MONSTAT, as well as general public.

12.2. Relevance - User Satisfaction

Customer satisfaction survey is not yet available at the level of research. All users request was fulfilled and based on that, we have concluded that users are satisfied with our survey. At the level of institutions is available online survey: http://www.monstat.org/eng/anketa.php

12.3. Completeness

Survey is done on the basis of a sample includes companies that are registered in sections G, H, I, J, K, L, M, N, P,  Q, R and S NACE Rev. 2 classification of economic activities and the data obtained in this survey are partially compliant with the Council Regulation No 1165/98. Council Regulation No 1165/98, for annex D – other services, requires sending five variables (Turnover, Number of person employed, Hours worked, Output prices and Gross wages and salaries). At this moment we only send data of number of employee and gross wages and salaries in other services. We need to do seasonal adjustment of other services series, to send data for turnover and data of hours worked.

13. Accuracy Top
13.1. Accuracy - overall

The quarterly other services survey results are based on a sample of reporting units and are subject to the usual types of errors associated with sampling techniques, as well as non-sampling errors, measurement errors, processing errors and non-response.

Since the survey does not include all units of a target population but rather a randomly selected sample of units, there are sample errors that may occur in estimations. A variation coefficient is a relative measure (percentage) of the accuracy of an estimate. Along with these measures, a lower and upper limit of a confidence interval is calculated.

13.2. Sampling error

Quarterly survey of other services is done on a sample basis, so it is logical that there is an error in random sampling. Sampling error is regularly calculated for each quarter.

13.3. Non-sampling error

A) Coverage error is the divergence between the frame population and the target population. Eventual discrepancies between the units reported in the frame and the target population unit.

B) Measurement errors are errors that occur during data collection and cause recorded values of variables to be different from the true ones. Indirect analysis based on the results on editing phase is implemented for correction.

C) Processing errors. Once data have been collected, they pass through a range of processes before the final compilation (estimates, etc.) are produced: coding, keying, editing, imputing, weighting, tabulating, etc. Errors introduced at these stages are called processing errors.

D) Non-response errors occur when the survey fails to get response to one, or possibly to all questions of the survey.

The unit non response rate is calculated as the ratio of the number of units which did not responded to the total number of eligible units (unweight rate). The item non response rate is calculated as the ratio of the eligible units which have not responded to a particular item and the in-scope units that are required to respond to that particular item.

14. Timeliness and punctuality Top
14.1. Timeliness

The first results are published around 38 days after the end of the reference quarter.

Questionnaires are sent to reporting units at the beginning of the year (questionnaires are sent for all 4 quarter in the year). The deadline for replies is 15 days after the reference quarter.

14.2. Punctuality

Deadlines for publishing have been complied in accordance with the calendar of release. There is no time lag between the actual delivery of the data and the target date when it should have been delivered.

15. Coherence and comparability Top
15.1. Comparability - geographical

Methodology of our retail trade survey is the same as in other European countries, that is the reason why our data are comparable geographically with data of other EU countries (data are not workday and seasonally adjusted).

15.2. Comparability - over time

Comparable data are published since 2010  on the MONSTAT website  http://www.monstat.org/eng/page.php?id=1111&pageid=1111

15.3. Coherence - cross domain

The data from other areas of economic statistics (Structural Business Statistics, National Accounts,Tourism statistics, Transport statistics…) are used to do cross-checking the data.

15.4. Coherence - internal

Data are internal coherent. Higher level aggregations are derived from detailed indices according to well-defined procedures.

16. Cost and Burden Top

Financial resources required for the implementation of survey according Annual plan of official statistics for 2016 amounts 24.056,32 Euro. Burden of respondents: approximately 15 hours per quarter.

17. Data revision Top
17.1. Data revision - policy

There is no official policy on data revision in MONSTAT. The "de facto revision policy" used for this survey includes:

- For mayor revisions (such as change of base year) - all series are recalculated but changes are not announced in advance. Explanations are given when new data are published.

- If errors occur, corrected data are published as soon as possible or in the next issue of the publication.

Routine revisions are corrections of already published previous data due to the completion and improvement of the quality of data sources used for the compilation of indicators. In this way, the data become final. Routine revisions are made to the moment of publication of the final data. The same revision policy is applied nationally and in transmission to Eurostat.

A revision calendar does not yet exist.

17.2. Data revision - practice

Published data are considered preliminary until the next quarterly release. When the next quarter data were published then data from previous statements become final. Quarterly services data are published 60 days after referent period.

18. Statistical processing Top
18.1. Source data

Data are collected on a sample of reporting units including Statistical Business Register (SBR) in MONSTAT which are registered in G, H, I, J, K, L, M, N, P,  Q, R and S according to NACE Rev. 2 classifications.

18.2. Frequency of data collection


18.3. Data collection

Data are collected through paper questionnaires (by post, email or fax). Missing questionnaire is imputed from administrative VAT data.

18.4. Data validation

Data validation is done thru control of individual data and control of aggregated data and indices. In order to ensure data quality, simultaneously with collecting and manual coding, data are visually checked by statisticians for missing, invalid or inconsistent questionnaires or values, and if needed manually corrected. Reporting units are contacted for additional clarifications. Then checking is done during the process of data entry and after data entry. Data checking is performed in accordance with the defined criteria for control (automatic validation) and error corrections are carried out. Data are compared with the previous period of the same year, as well as with same period of previous year. If necessary, the respondents are contacted in order to clarify the deviation. There is the remark field in the questionnaire for any explanation of the unit (especially for the case of large increase or decrease in turnover compared to the previous quarter). Moreover, there is possibility to report the corrections of turnover for the previous quarter.

Statistical results (aggregated data) for the reference quarter are also compared to the results of the previous quarter and with the corresponding quarter of the previous year at each level of aggregation.

18.5. Data compilation

In case of non-response, imputation is done for large non-respondents based on administrative VAT data or based on previous values for the same enterprise or value of the previous period multiplied by the growth rate of the equivalent period of the previous year; the other units are treated by reweighting (weights are adjusted to take account of non-response).

Data are collected on a sample of reporting units which represent the movement of the total turnover of goods, and therefore the results of research are the quarterly assessment of realized turnover of goods. Horvitz-Thompson's assessment totals were calculated by a standard procedure for stratified sample with random selection of units within the stratum. Thus, the assessment totals are calculated by summing the weighted values of the sample, with the weight of units of the same stratum equals to the ratio of number of units in the stratum and the number of units in the sample. The initial weights are adjusted for non-response. Allocation is done by Nyman’s algorithm.

18.6. Adjustment

We still do not have started seasonally adjusting data. We planned to start seasonally adjusting, to the end of 2017 year.

19. Comment Top

Not applicable.

Related metadata Top

Annexes Top