Trips of EU residents - annual data (tour_dem)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: National Statistical Institute


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)
 



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1. Contact Top
1.1. Contact organisation

National Statistical Institute
1.2. Contact organisation unit

Statistics of Tourism and Business Surveys Department
1.5. Contact mail address

2, P. Volov str.; 1038 Sofia, Bulgaria


2. Metadata update Top
2.1. Metadata last certified 30/09/2023
2.2. Metadata last posted 30/09/2023
2.3. Metadata last update 30/09/2023


3. Statistical presentation Top
3.1. Data description

[Optional]
3.2. Classification system

Not applicable.
3.3. Coverage - sector

National tourism: domestic tourism and outbound tourism (trips made by residents of the reporting country).
3.4. Statistical concepts and definitions
3.4.1 Statistical concepts and definitions

See Regulation 692/2011 

Delegated Regulation 2019/1681

and Methodological Manual for Tourism Statistics
3.4.2 Additional comments (e.g. country-specific deviations)
3.5. Statistical unit
3.5.1 Statistical unit 

Participation in tourism: the individual.
Tourism trips: the tourism trip with at least one overnight stay made by the individual.
Same-day visits: the SDV made by the individual.
3.5.2 Reporting unit Each person in the selected household (within the age scope)
3.5.3 If other or additional comments, please specify
3.6. Statistical population
3.6.1 Statistical population

Participation in tourism: All residents aged 15 or over, residing in the country.

Tourism trips: All tourism trips of at least one overnight stay made outside the usual environment by the residents aged 15 or over.

Same-day visits: All outbound SDV made outside the usual environment by the residents aged 15 or over.
3.6.2 Additional comments (e.g. deviating coverage in terms of age groups, multiple surveys with different subpopulation, inclusion of domestic same-day visits in years where this is not compulsory)
3.7. Reference area

Entire territory of the country.
3.8. Coverage - Time

Coverage - Time [data comparable since (YYYY)]

3.8.1 Participation in tourism (Year)

2012
3.8.2 Tourism trips (Year)

2012
3.8.3 Same-day visits (outbound) (Year)

2012
3.8.4 Same-day visits (domestic) (Year)

2012
3.8.5 Additional comments (e.g. longer series for subgroups)

Data on participation in tourism and on tourist trips are available since 2008.

Comparable time series for participation in tourist trips as well as for tourist trips are available from 2012, since breaks can be observed between the reference period 2011 and 2012 due to the implementation of the regulation 692/2011.

There are some changes in methodology and organization of the tourist survey according to Regulation 692/2011 - updating questionnaire (including additional questions, clarifying definition of tourist trips and non-tourist trips), collecting more detailed information for trips, improving organization for the survey, updating program for data entry in order to minimize mistakes, etc.

Another possible reason for the break is that the sample in 2011 is based on data from Population Census as of March 2001, while in 2012 sample the Population Census in 2011 was used as the population frame. The number of Bulgarian population in 2011 decreased by approximately 7% as well as the households’ structure changed compared to Population in 2001.
3.9. Base period

Not applicable.


4. Unit of measure Top

Not applicable.


5. Reference Period Top

2022


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

Regulation 692/2011

Regulation 1051/2011

https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32019R1681&qid=1656065604987&from=EN

https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32021R1179&qid=1656065668767&from=EN
6.1.2 National level

Law of Statistics: https://nsi.bg/en/content/553/basic-page/statistics-act

Law of Tourism: http://www.tourism.government.bg/en/kategorii/zakoni
6.2. Institutional Mandate - data sharing

Not applicable.


7. Confidentiality Top
7.1. Confidentiality - policy
  • Law on statistics of the BNSI; https://nsi.bg/en/content/553/basic-page/statistics-act
  • 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.
7.2. Confidentiality - data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics of the BNSI.

Article 25. (Amended, SG No. 81/2005) (1) (Supplemented, SG No. 98/2008) Individual data received and collected through statistical surveys shall constitute a statistical secret and may be used only for statistical purposes. Individual data received for the purposes of statistical surveys may not be used as evidence before the bodies of the executive and the judiciary. (2) (Supplemented, SG No. 98/2008) The National Statistical Institute and statistical authorities and their staff may not disclose or provide: 1. individual statistical data; 2. (amended, SG No. 98/2008) statistical data which can be matched in a way that enables the identification of a specific statistical unit; 3. (amended, SG No. 98/2008) statistical information which aggregates data about less than three statistical units or about a population in which the relative share of the value of a surveyed parameter of a single unit exceeds 85 per cent of the total value of such parameter for all units in the population.


8. Release policy Top
8.1. Release calendar

[Optional]
8.2. Release calendar access

[Optional]
8.3. Release policy - user access

[Optional]


9. Frequency of dissemination Top

Not applicable.


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

News releases on Tourist Trips and Tourism-related Expenditure of the Population are available on-line with quarterly periodicity at:

https://nsi.bg/bg/content/1994/
10.2. Dissemination format - Publications

Statistical Reference book and Statistical Yearbook in pdf format are accessible on BNSI's website: https://nsi.bg/en/content/20526/%D0%BF%D1%83%D0%B1%D0%BB%D0%B8%D0%BA%D0%B0%D1%86%D0%B8%D1%8F/statistical-yearbook-2022
10.3. Dissemination format - online database

Data on expenditure on the tourist trips are available to all users of the BNSI website under the heading Business statistics – Tourism - Tourist trips and tourism related expenditure of the population - Expenditure on tourist trips of the population: https://nsi.bg/en/content/1996/expenditure-tourist-trips-population
10.4. Dissemination format - microdata access

Micro data are not disseminated.
10.5. Dissemination format - other

None
10.6. Documentation on methodology

Methodology on the tourist trips and tourism-related expenditure of the population: https://nsi.bg/sites/default/files/files/metadata/TUR_3_Methodology_en.pdf

Methodological Manual for Tourism Statistics: http://ec.europa.eu/eurostat/product?code=KS-GQ-13-007&mode=view&language=en
10.7. Quality management - documentation

None


11. Quality management Top
11.1. Quality assurance

Not applicable
11.2. Quality management - assessment
11.2.1 Main strengths

The data is comparable from 2012 and onwards.

The data are used by national accounts, balance of payments and etc.

The improvement of the program (web-application) and the controls for data entry to minimize errors and missing values for some variables, especially on expenditures and socio - demographic characteristics has been done every year.
11.2.2 Main weaknesses

The data is not comparable in the period 2008 - 2011 due to changes in the questionnaire, reference period and sample size.
11.2.3 Quality improvements compared with previous reference year

The new controls for data entry are implemented.


12. Relevance Top
12.1. Relevance - User Needs
12.1.1 European level

Eurostat, UNWTO and other international organizations
12.1.2 Main users on a national level

Ministry of Tourism, Bulgarian National Bank and others
12.2. Relevance - User Satisfaction

The users in the country are satisfied with the data.
12.3. Completeness
12.3.1 Completeness

Compliant with the requirements of Regulation on tourism statistics 692/2011, Delegated Regulation 2019/1681, as well as recommendations laid down in the Methodological Manual for tourism statistics
12.3.2 If not, please specify why and list deviations from Reg.

The survey on tourist trips and tourism-related expenditure of the population includes all mandatory variables according to Regulation 692/2011 of the European Parliament and of the Council concerning European statistics on tourism.


13. Accuracy Top
13.1. Accuracy - overall

Two-stage cluster sample is used to survey sample. The sample size for each quarter is 3 000 households or about 5 250 persons aged 15 years and over. Due to the sampling approach used in the survey, results are subject to errors attributable to sample (stochastic errors) as well as other errors related to the inability to interview some of the units in the sample, errors in registration of responses, processing, and others.
13.2. Sampling error

13.2.1 Sampling errors - indicators

Information on Sampling errors may also be provided in the attached file.  Estimated value Coefficient of variation
13.2.1.1 Participation in tourism for personal purposes: number of residents, aged 15 or over, having made at least 1 trip of at least 1 overnight stay (all age groups)

1,647,644

2.7%
13.2.1.2 Participation in tourism for personal purposes: number of residents, aged 65 or over, having made at least 1 trip of at least 1 overnight stay

144,665

5.4%
13.2.1.3 Tourism trips - Total number of trips

4,314,168

2.0%
13.2.1.4 Domestic trips

3,434,713

2.2%
13.2.1.5 Outbound trips

879,455

4.4%
13.2.1.6 Private/Personal trips

4,140,706

2.0%
13.2.1.7 Professional/business trips

173,463

10.2%
13.2.1.8 Domestic trips spent at rented accommodation

2,066,721

 2.5%
13.2.1.9 Domestic trips spent at non-rented accommodation

1,367,992

3.2%
13.2.1.10 Tourism trips - Total expenditure excluding durables and valuable goods

2,457,113,029

2.0%
13.2.1.11 Expenditure on accommodation

763,612,366

 2.5%


13.2.2 Additional comments on sampling error

None





 
13.3. Non-sampling error

13.3.1 Coverage errors

13.3.1.1 Over-coverage

Over-coverage errors could occur if:

  • the houses are uninhabited or houses are used for other purposes;
  • one household (according to the Census list) is divided into two or more separate households or the opposite;

Over-coverage is in practice unknown and it is not measured.
13.3.1.2 Under-coverage

Under-coverage errors occur when the persons living abroad or living in the social institutions are not included in the sample survey coverage.


13.3.2 Unit non-response for TRIPS dataset

  Unit non-response
13.3.2.1 Number of ineligible units/ elements

14
13.3.2.2 Number of eligible units/elements

18514
13.3.2.3 Number of non-contacts

1259
13.3.2.4 Number of refusals

320
13.3.2.5 Number of rejected questionnaires

0
13.3.2.6 Number of other types of non-response

129
13.3.2.7 Total non-response (= sum of 13.3.2.3 to 13.3.2.6)

1708


13.3.3 Unit non-response rate

13.3.3.1 Unit non-response rate for TRIPS dataset (= 13.3.2.7 divided by 13.3.2.2)

9.2%
13.3.3.2 Unit non-response rate for PARTIC dataset

11.5% 
13.3.3.3 Unit non-response rate for SDVOUT dataset

9.2% 
13.3.3.4 Methods used for dealing with/minimising unit non-response

Methods used for minimising unit non-response are: 
- sending advanced notification of the participation in the survey in the form of a letter;  
- personal visits to the respondent at different times of the day.


13.3.4 Item non-response

13.3.4.1 Item non-response

Item non-response rate - 12.8%
13.3.4.2 Methods used for dealing with/minimising item non-response

Imputation for missing values on variables as tourist expenditure on package trips, expenditure on accommodation, on transport, food and others (shopping, souvenirs, tickets for concerts or a sports event and etc.), are made using mean imputation.

The variables which have item non-response are expenditure categories.


13.3.5 Additional comments on non-sampling error 

Unit-non response rate - 9.2%

Imputation rate - 11.9%

The rate of imputed values per expenditure categories for package trips are following:
expenditure on accommodation - 12.8%
expenditure on food - 10.8%
expenditure on transport - 13.4%
expenditure on others - 1.4%


(in case of second survey please briefly describe 13.3.1-13.3.4 here)


14. Timeliness and punctuality Top
14.1. Timeliness
14.1.1 Participation in tourism

90 days after reference year

Time lag first results = 45 days

Time lag final results = 31.03.2023
14.1.2 Tourism trips

90 days after reference year

Time lag first results = 45 days

Time lag final results = 31.03.2023
14.1.3 Same-day visits (outbound)

90 days after reference year

Time lag first results = 45 days

Time lag final results = 31.03.2023
14.2. Punctuality
14.2.1 Participation in tourism

-14
14.2.2 Tourism trips

-14
14.2.3 Same-day visits (outbound)

-14


15. Coherence and comparability Top
15.1. Comparability - geographical

See 3.7 (in case of deviations for geographical coverage)

No problems regarding geographical comparability.
15.2. Comparability - over time
15.2.1 Participation in tourism

See 3.8.1

Comparable time series for participation in tourist trips as well as for tourist trips are available from 2012, since breaks can be observed between the reference period 2011 and 2012 due to the implementation of the regulation 692/2011.

There are some changes in methodology and organization of the tourist survey according to Regulation 692/2011 - updating questionnaire (including additional questions, clarifying definition of tourist trips and non-tourist trips), collecting more detailed information for trips, improving organization for the survey, updating program for data entry in order to minimize mistakes, and etc.

Another possible reason for the break is that the sample in 2011 is based on data from Population Census as of March 2001, while in 2012 sample the Population Census in 2011 was used as the population frame. The number of Bulgarian population in 2011 decreased by approximately 7% as well as the households’ structure changed compared to Population 2001.
15.2.2 Tourism trips

See 3.8.2

Comparable time series for participation in tourist trips as well as for tourist trips are available from 2012, since breaks can be observed between the reference period 2011 and 2012 due to the implementation of the regulation 692/2011.

There are some changes in methodology and organization of the tourist survey according to Regulation 692/2011 - updating questionnaire (including additional questions, clarifying definition of tourist trips and non-tourist trips), collecting more detailed information for trips, improving organization for the survey, updating program for data entry in order to minimize mistakes, and etc.

Another possible reason for the break is that the sample in 2011 is based on data from Population Census as of March 2001, while in 2012 sample the Population Census in 2011 was used as the population frame. The number of Bulgarian population in 2011 decreased by approximately 7% as well as the households’ structure changed compared to Population 2001.
15.2.3 Same-day visits (outbound)

See 3.8.3

Comparable time series for participation in tourist trips as well as for tourist trips are available from 2012, since breaks can be observed between the reference period 2011 and 2012 due to the implementation of the regulation 692/2011.

There are some changes in methodology and organization of the tourist survey according to Regulation 692/2011 - updating questionnaire (including additional questions, clarifying definition of tourist trips and non-tourist trips), collecting more detailed information for trips, improving organization for the survey, updating program for data entry in order to minimize mistakes, and etc.

Another possible reason for the break is that the sample in 2011 is based on data from Population Census as of March 2001, while in 2012 sample the Population Census in 2011 was used as the population frame. The number of Bulgarian population in 2011 decreased by approximately 7% as well as the households’ structure changed compared to Population 2001.
15.3. Coherence - cross domain

Differences between data from survey on accommodation establishments and data from household survey are mainly due to:

  • difference in type of accommodation - accommodation statistics provides data on number of arrivals and nights spent in categorized accommodation establishments with 10 and more bed-places, while household survey covers data on all accommodation establishments, as well as non-rented  accommodation provided without charge (the own holiday home and by relatives or friends).
  • difference in persons included in the number of arrivals - household survey covers persons aged 15 and over, while the survey on accommodation establishments in the number of arrivals includes persons under 15 years old.
  • other differences observed in scope, in reporting unit, in reporting period, the aims of collecting information etc. also affect the comparability of results.

As example: the number of nights spent by residents derived from the Survey on tourist trips and tourism-related expenditure of the population in 2022 amounted to 12,567,097 in total, from which 8,335,816 nights were spent in accommodation for payment.

On the other hand the number of nights spent by residents collected from accommodation statistics is 11,286,336
15.4. Coherence - internal

Not applicable.


16. Cost and Burden Top

Cost and burden are not systematically collected.


17. Data revision Top
17.1. Data revision - policy

The first released quarterly data on tourist trips are presented as preliminary and are therefore subject to scheduled revisions. Nevertheless, provisional estimates have the necessary accuracy. To obtain definitive estimates, editing, imputation and analysing records are made. The final estimate of the survey (tourists, trips and nights) is not deviating a lot from the provisional data.

Also ad hoc data revisions are made after methodological changes (in statistical methods, concepts and definitions), detected errors, and etc.
17.2. Data revision - practice

The quartely data are not revised at all. The annual data are revised after data collection from the four quarters if it is necessary.


18. Statistical processing Top
18.1. Source data

18.1.1. Source data

18.1.1.1 Source data

The statistical survey on tourist trips and tourism-related expenditure of the population
18.1.1.2 Name of data collection in national language

Туристически пътувания и разходите за туризъм на населението
18.1.1.3 Name of data collection in English

The statistical survey on tourist trips and tourism-related expenditure of the population.
18.1.1.4 Survey vehicle Stand-alone survey
18.1.1.5 If "Embedded in another survey", please indicate which other survey. In case both options were ticked, please describe here separately the approach for PARTIC, TRIPS, SDVOUT


18.1.2. Population frame

18.1.2.1 Population frame Population register
18.1.2.2 Update of population frame Annually
18.1.2.3 If other frequency or additional comments, please specify
18.1.2.4 Coverage errors of population frame

The possible types of over-coverage:

  • houses are uninhabited or houses are used for other purposes
  • one household (according to the Census list) divided into two or more separate households or the opposite.

The possible types of under-coverage:

  • the residents living abroad during the census are excluded from the sample survey
  • the persons living in the social institutions during the census are excluded from the sample survey


18.1.3. Gross sample size (year, individuals)

18.1.3.1 Gross sample size for trips (= 13.3.2.1 + 13.3.2.2)

18528
18.1.3.2 Gross sample size for participation in tourism

18528
18.1.3.3 Gross sample size for (outbound) same-day visits

18528
18.1.3.4 Additional comments


18.1.4. Net sample size (year, individuals)

18.1.4.1 Net sample size for trips (= 13.3.2.2 – 13.3.2.7)

16806
18.1.4.2 Net sample size for participation in tourism

16806
18.1.4.3 Net sample size for (outbound) same-day visits

16806
18.1.4.4 Additional comments


18.1.5. Sampling design

18.1.5.1 Sampling design Two-stage sampling
18.1.5.2 If other or additional comments (also when more than one options is chosen in 18.1.5.1), please specify. Links to national methodology documentation can also be inserted here.

The survey is a two-stage sample. The sample is stratified by urban/rural areas, with:

  • cluster on the first stage - enumeration districts of February 2011 Population Census
  • cluster on the second stage - households.

Clusters on the first stage are chosen with probability proportional to the size of district's population and on the second - equal number of the households are systematically selected within each enumeration district.


18.1.6. Second survey or source

18.2. Frequency of data collection
18.2.1 Frequency of data collection Quarterly
18.2.2 Other frequency or additional comments
18.3. Data collection

18.3.1. Type of survey

Household survey


18.3.2. Data collection methods

18.3.2.1 Data collection methods PAPI face-to-face (pen-and-paper interview)
18.3.2.2 If other or additional comments, please specify. In case a combination of data collection methods is used, please give an indication of the importance of the different methods (in terms of number of respondents) 
18.3.2.3 Questionnaire in national language (Annex/Link)

Анкетна карта за изследване на туристическите пътувания и разходите за туризъм на населението (see annex: "Tourist trips and tourism-related expenditure of the population" in Bulgarian),
18.3.2.4 Questionnaire in English (Annex/Link)

Not available
18.3.2.5 Interviewer instructions in English (Annex/Link)

Not available


18.3.3. Proxy interviews

18.3.3.1 Proxy interviews Allowed
18.3.3.2 If "Allowed" or "Only in exceptional cases", please indicate for which variables in particular proxy interviews were used (it not all questions); If 4. "Not applicable", please explain why.

All members aged 15 and over of the selected households are interviewed, but proxy interviews are allowed.
There is no informations about the rate of proxy interviews.


18.3.4. Average interview time (The average interview time is X minutes.)

18.3.4.1 Average interview time

30
18.3.4.2 Average interview time for respondents that reported trips

10


18.3.5 Second survey or source

No


Annexes:
TOURIST TRIPS AND TOURISM-RELATED EXPENDITURE OF THE POPULATION
18.4. Data validation
18.4.1 Data validation

Primary data of the questionnaires are entered into software, which made logical and arithmetic checks, and at the same time discrepancies are corrected. Additional logical compatibility of data in the aggregated files is carried out.
18.4.2 Second survey or source (In case a second survey or source is used for collecting data on participation, trips or same-day visits, please briefly describe 18.4.1 here in relation to those surveys/sources)

No
18.5. Data compilation
18.5.1 Data compilation

The completed questionnaires are coded and data entry is done on computer at the Regional statistical office. The BNSI receives primary data, where it performs processing, correcting, analysing and weighing at the national level. The imputation method for missing values is used mainly by mean. Imputation for missing values on variables is done for tourist expenditure on package trips and expenditure by categories on trip. Averages are calculated for each group of trips with common characteristics like the destination and the duration. Expenditure values are imputed based on the average expenditure for this variable from other selected trips with similar characteristics. Then imputed values of expenditure are re-edited to ensure that no outlier values are observed. Results of the survey are weighed at quarterly basis. The current demographic data in 2021 for the total population are used for weighting the results of the statistical survey on tourist’s trips and tourism-related expenditure on population carried out in 2022. Each quarterly data obtained by the survey are post-stratified by urban /rural areas, sex and age groups.
18.5.2 Second survey or source (In case a second survey or source is used for collecting data on participation, trips or same-day visits, please briefly describe 18.5.1 here in relation to those surveys/sources)

No
18.6. Adjustment

Not applicable.


19. Comment Top

[Optional]


Related metadata Top


Annexes Top