First results on the main demographic developments: for the reference year.   

The objective of the Determination of the Resident Population and its Composition survey is to produce and provide to users statistical information on the number of the usually resident population and its structure by sex, age, citizenship, country of birth, marital status, territorial-administrative units (Capital Region and Central and Western Lithuanian Region, county, municipality (in total, towns/cities, rural areas)). Data on usual resident population from the Statistical Population Register is used to define the population. The Statistical Population Register is updated daily with data from the Population Register on births, deaths and changes in usual residence (within the country, entering/leaving the country). The population of usual residents is formed for the reference date by selecting from the Statistical Population Register the persons with the attribute of usual residents. 

The objective of the Fertility Statistical Survey is to produce and provide to users’ statistical information on the number of live births by sex, birth order, age of mother, marital status, duration of marriage of parents, Capital Region and Central and Western Lithuanian Region, county, municipality (in total, towns/cities, rural areas), etc.  The survey is a total (census) survey carried out on basis of the Statistical Population Register data. The survey population is formed on basis of data from records of births, the baby's and its parents' place of residence and other data from the Statistical Population Register and data from identity documents issued in the Republic of Lithuania. 

The objective of the Mortality Statistical Survey is to produce and provide to users statistical information on the number of deaths by sex, age, marital status, citizenship, etc., as well as the number of stillbirths by sex, birth order and age of mother, Capital Region and Central and Western Lithuanian Region, county,  municipality (in total, towns/cities, rural areas). The survey is a total (census) survey carried out on the basis of the Statistical Population Register data. The survey population is formed on basis of data from records of births and deaths from the Statistical Population Register and data from identity documents issued in the Republic of Lithuania. 

The objective of the International Migration Statistical Survey is to produce and provide to users statistical information on the number of immigrants and emigrants, their composition by sex, age, citizenship, country of birth, previous or next place (country) of residence, marital status,  Capital Region and Central and Western Lithuanian Region, county, municipality (in total, towns/cities, rural areas), etc. International migration statistics is calculated of the population and its sex and age structure. The survey is a total (census) survey. The main data source of immigration and emigration indicators is the data from the Statistical Population Register. The population of the survey is compiled based on the following data from the Statistical Population Register: declared place of residence in the Republic of Lithuania, date of arrival, country of arrival, date of departure, county of destination. The main criteria for defining immigrants and emigrants are the change of a country of permanent residence and duration of stay or absence in case of intention to take up permanent residence in a new place (country) for good or for a period not less than 12 months. 

Palantir Foundry (Contour, etc. applications), MS Excel, statistical program package R, and other programs are used to prepare demographic statistics. 

Nomenclature of countries and territories; 

Classification of Administrative Units and Populated Localities of the Republic of Lithuania (LR AVGVK 2018) (only in Lithuanian); 

Nomenclature of Territorial Units for Statistics (NUTS). 

The resident population at the beginning of the year is obtained by adding the number of live births, immigrants during the year, to the population at the beginning of the previous year, and subtracting the number of deaths and emigrants during the year. 

Natural population change is the difference between the number of live births and deaths. 

Average population is the average number of inhabitants during a respective period. It is calculated as half of the sum of the resident population at the beginning and end of the period. 

Net international migration is the difference between the total number of immigrants and that of emigrants. 

The number of the resident population by national level is comparable since 1959, by municipality (towns/cities, rural area) level – since 1990. 

The number of the live births and the number of deaths are comparable since 1950. 

The number of the immigrants and the number of emigrants by national level are comparable since 1990. The number of immigrants and emigrants by different breakdowns, i.e., age, sex, citizenship, country of birth, etc. is comparable since 2001. 

Data is collected at unit (person) level.  

Resident population figures are disseminated in number of persons (absolute numbers), also as shares of various age groups in total population (per cent), crude rates expressed per 1000 of the average population and other. 

The number of live births, deaths, immigrants and emigrants is disseminated in number of persons (absolute numbers), crude rates expressed per 1000 of the average population and other. 

Regulation (EU) No 1260/2013 of the European Parliament and of the Council of 20 November 2013 on European demographic statistics.  

Regulation (EC) No 862/2007 of the European Parliament and of the Council of 11 July 2007 on Community statistics on migration and international protection and repealing Council Regulation (EEC) No 311/76 on the compilation of statistics on foreign workers. 

Regulation (EC) No 763/2008 of the European Parliament and of the Council of 9 July 2008 on population and housing censuses. 

Law on official Statistics of the Republic of Lithuania. 

Description of Statistical Disclosure Control Methods, approved by Order No DĮ-124 of 26 May 2022 of the Director General of Statistics Lithuania. 

The State Data Governance Information System Data Security Regulations and Rules for the Secure Management of Electronic Information in the State Data Governance Information System, approved by Order No DĮ-202 of 27 August 2021 of the Director General of Statistics Lithuania. 

Statistical information is prepared and disseminated under the principle of impartiality and objectivity, i.e. in a systematic, reliable and unbiased manner, following professional and ethical standards (the European Statistics Code of Practice), and the policies and practices followed are transparent to users and survey respondents. 

All users have equal access to statistical information. All statistical information is published at the same time – at 9 a.m. on the day of publication of statistical information as indicated in the calendar on the Official Statistics Portal. Relevant statistical information is sent automatically to news subscribers. 

The President and Prime Minister of the Republic of Lithuania, their advisers, the Ministers of Finance, Economy and Innovation, as well as Social Security and Labour of the Republic of Lithuania or their authorized persons, as well as, in exceptional cases, external experts and researchers have the right to receive early statistical information. The specified persons are entitled to receive statistical reports on GDP, inflation, employment and unemployment and other particularly relevant statistical reports one day prior to the publication of this statistical information on the Official Statistics Portal. Before exercising the right of early receipt of statistical information, a person shall sign an undertaking not to disseminate the statistical information received before it has been officially published. 

Statistical information is published following the Official Statistics Dissemination Policy Guidelines and Statistical Information Dissemination and Communication Rules of Statistics Lithuania approved by Order No DĮ-176 of 2 July 2021 of the Director General of Statistics Lithuania. 

The frequency of dissemination of the resident population number – see par. 14.1 (Timeliness) and 17.2 (Data revision – practice). 

The frequency of dissemination of the number of live births, deaths,immigrantsand emigrants is monthly and annual. 

Statistical indicators are published in the Database of Indicators (Population and social statistics -> Population -> Mortality). 

The Database of Indicators allows users to interactively, and free of charge, form tables from selected data.

A data analysis tool is meant for linking indicators from different domains, calculation of totals, differences, averages, medians, maximum and minimum values. 

One table may be used as a basis for forming several different charts or maps. 

More information on the Database of Indicators is available at the Database of Indicators User Guide. 

Microdata are available and provided for scientific purposes according to the provisions set in the Description of Procedures for the Provision of Confidential Statistical 

Data for Scientific Purposes. More information is available on the Official Statistics Portal, at Data for scientific purposes. 

Public data files: users are also provided with opportunity to access public files with statistical data on observation units. More information is available on the Official Statistics Portal, at Public data files. 

Statistical information is provided on individual requests (more information on the website of Statistics Lithuania at https://osp.stat.gov.lt/en/e.-paslaugos). 

Statistical information is provided to Eurostat and other international organizations by completing questionnaires sent by them. 

Metadata information with quality report is available. 

Resident population: https://osp.stat.gov.lt/documents/10180/5118910/Gyventojų+skaičius+ir+sudėtis+%5BEN%5D+483.html 

Live births: https://osp.stat.gov.lt/documents/10180/5118910/Gimstamumas+%5BEN%5D+484.html 

Deaths: https://osp.stat.gov.lt/documents/10180/5118910/Mirtingumas+%5BEN%5D+487.html 

Immigration, Emigration: https://osp.stat.gov.lt/documents/10180/5118910/Tarptautin%C4%97+migracija+%5BEN%5D+709.html 

Quality of statistical information and its production process is ensured by the provisions of the European Statistics Code of Practice and ESS Quality Assurance Framework. 

In 2007, a quality management system, conforming to the requirements of the international quality management system standard ISO 9001, was introduced at Statistics Lithuania. Main trends in activity of Statistics Lithuania aimed at quality management and continuous development in the institution are established in the Quality Policy. 

Monitoring of the quality indicators of statistical processes and their results and self-evaluation of statistical survey managers is regularly carried out in order to identify areas which need improvement and to promptly eliminate shortcomings. 

More information on assurance of quality of statistical information and its preparation is published in the Quality Management section on the Statistics Lithuania website. 

After the defined the resident population number by the Population and Housing Census of the Republic of Lithuania, it is compared with estimated resident population number, and if it is the big difference - revised. Population and its composition is also revised in inter-census period. 

The data about children under 1-year visits to the medical doctor from Compulsory Health Insurance Information System (Sveidra) under the National Health Insurance Fund under the Ministry of Health is used for the improving of the estimation of the number of live births. In the number of live births are included only those children born abroad who visited to the medical doctor at least once during the year after birth. Number of live births is compared with the final results of the Population and Housing Census of the Republic of Lithuania, in case of discrepancy number of live births is recalculated. 

After processing the annual mortality data, analysis is performed. Mortality data by permanent place of residence produced by Statistics Lithuania are compared with causes of death data produced by Institute of Hygiene. In case of discrepancies, checks of source data are performed, taking in account the changes of permanent place of residence in the Population Register. 

 Monthly (provisional) statistical data are processed according to declaration of change of place of residence (from Lithuania to foreign country, from foreign country to Lithuania) and following the statistical rules, by merging databases of international migration of demographic statistics and the Population and Housing Census 2011, considering whether an international migrant is included in the database of the Population and Housing Census 2011 and taking into account the international migration history of person. 

Annual (final) statistical data are based on monthly (provisional) data and taking into account that: 

• immigrant who has declared his or her arrival is attributed to annual immigrants if by the end of the reference year he or she has not declared the departure from Lithuania; 
• emigrant who has declared his or her departure is attributed to annual emigrants if by the end of the reference year he or she has not declared the return to Lithuania. 

The results are compared with the results of previous year. If there are significant deviations, reasons for deviations are considered. 

The number of emigrants was revised after the Population and Housing Census of the Republic of Lithuania. The number of emigrants by various breakdowns was also revised in inter-census period. 

From 2005, user opinion surveys have been conducted on a regular basis. Official Statistics Portal traffic is monitored, website visitor opinion polls, general opinion poll on the products and services of Statistics Lithuania, target user group opinion polls and other surveys are conducted.  

In 2007, the compilation of a user satisfaction index was launched. The said surveys are aimed at the assessment of the overall demand for and necessity of statistical information in general and specific statistical indicators in particular. 

For more information on user surveys and their results, see section User surveys on the Statistics Lithuania website. 

All statistical indicators on resident population number, the number of births and deathsestablished by legislation are published in Regulation (EC) No 1260/2013. 

Statistical indicators on international migration laid down in Regulation (EC) No 862/2007 are produced and published.

Provisional monthly statistical information on the number of live births is published on the 9th–11th days after the end of the reference period. Provisional annual statistical information is published in January after the end of the reference year, and final – in May .

Statistical information is published taking into account flows of statistical data and deadlines for their receipt. Provisional weekly statistical information on the number of deaths is published on the 3rd day after the end of the reference week, and the provisional monthly statistical information – on the 9–11th day after the end of the reference month. Provisional annual statistical information is published in January after the end of the reference year, and final – in May.    

Statistical information is published taking into account the flows of statistical data and the deadlines for their receipt. Provisional annual statistical information is published in January after the end of the reference year, final – in March. 

The purpose of data revisions is to provide users of statistical information with revised final monthly, half-yearly, and annual statistics on the resident population.  

Reasons for revision. Scheduled revisions/audits are performed. Provisional and revised (adjusted) final statistical information is published. Revisions may be performed in case of significant errors, changes in classifications, updating of methodology, the emergence of new statistical data sources, census of population and housing of the Republic of Lithuania, etc. 

Methods. Statistical information on usual residents is prepared taking into account: a) the deadlines for registering a person's birth or other change in civil status and recording data in the Population Register established in the legal acts of the Republic of Lithuania; b) receiving, updating and using administrative data in accordance with contracts and agreements concluded by Statistics Lithuania with administrative data processors. 

Detail and cyclicality. After final demographic and migration statistics have been published, resident population figures as of the beginning of each month of the previous year, and resident population figures by the territorial-administrative unit as of 1 July of the previous year are revised (adjusted). 

Comparability. Comparable monthly statistics on the number of residentpopulation have been published since 2001. 

Calendar of revisions. Revisions are performed according to the statistical information revision calendar. The approved calendar of revisions of the planned statistical indicators for the current year, integrated into the Calendar of Official Statistics, is published on the Official Statistics Portal. According to the Official Statistics Calendar, annual statistical information is revised once a year. Other possible cases of revision – depending on the circumstances (disturbances in obtaining administrative data, preliminary assessments performed, etc.). 

Publication of results to users. Revised statistical information is published on the Official Statistics Portal (OSP). Revised statistical information in the OSP Database of Indicators is marked with special symbols "revised and recalculated data", users can be informed about revisions by special footnotes.  

The resident population of Lithuania for 2002-2012 has been recalculated on basis of final the results of the 2011 Population and Housing Census of the Republic of Lithuania. 

Frequency of data on resident population, births,and international migration –monthly, annual. 

Frequency of data on deaths– weekly, monthly, annual. 

Statistical information for the reference year is compared with the previous year. Statistical data validation is performed based on the quality of the information received. Trends of the time series, significant changes in trends and reasons that have caused this are analysed. Relationships among statistical indicators and, in the case of significant deviations, reasons for the deviation are studied. If missing values are detected, errors are corrected. 

Determination of the Usual Resident Population and its Composition, Fertility, Mortality, International migration statistical surveysare total surveys. Methods of grouping and summarizing statistics are used to compile statistical information. Missing administrative data values are recorded using historical data or logical, or nearest neighbor recording methods. 

Process of compiling statistical indicators is described in every methodology (https://osp.stat.gov.lt/gyventojai1→ Population → Methodology) (only in Lithuanian).