Usual residence in Latvia (experimental statistics)
Experimental statistics is produced by using new data sources and methods in making attempts to expand the range of statistics or the level of detail thereof based on the needs of data users.
It should be noted that the methods used in experimental statistics are not constant, approbated or internationally harmonized and can be changed to improve data quality. Central Statistical Bureau (CSB) publishes experimental statistics to get user feedback, evaluate analytical potential of the data and relevance thereof to the actual reality and data user needs.
The CSB believes that data users may find experimental data series valuable, and opinion of the data users may serve as a basis for making a decision to include this statistics in the Official Statistics Programme. By publishing experimental statistics, the CSB provides data users with new sources of information that may be used for decision making.
Concepts and definitions
Number of population [experimental statistics]
Population estimate on all the periods indicated was made based on geospatial data – coordinates of address points and boundaries of administrative territories in line with the State Land Service data on 1 January 2020. With such an approach, the fluctuations in the population of a territorial unit or administrative territory caused by the changes in boundaries of the respective territorial units were eliminated. The population having residence information last updated due to the cancellation of the residence registration is included in the number of inhabitants of the administrative territory in which the person's place of residence was previously declared or registered. The place of residence of these persons in the breakdown by territorial units and Riga neighbourhoods is indicated as unknown.
Data collection and statistical processing
Survey method and data source
At the beginning of 2020, villages, territorial units, administrative territories and statistical regions were set in line with the boundaries of the State Land Service WFS. Neighbourhoods were set in line with the boundaries published on Latvian Open Data Portal.
When using geo-coded addresses (coordinates of address points), territories can be defined spatially:
in PHC 2000 – 99.99 % of usually resident population;
in PHC 2011 – 100.00 %;
in 2016 – 99.65 %;
in 2017 – 99.65 %;
in 2018 – 99.61 %;
in 2019 – 99.59 %;
in 2020 – 99.57 %.
Population and Housing Census (PHC) 2000
It is assumed that usual residence of 90.7 % of the usually resident population of Latvia is the one indicated in the PHC 2000 questionnaire, while of those not met during the PHC – that indicated in the Population Register (PR). Within the official results of the PHC 2000, the demographic data (those characterising person) are published in line with the place of residence indicated in the PR (registered address). Total population of the country in official statistics meets the number of inhabitants in the PR, whereas experimental statistics has excluded 321 people the existence of which at the critical moment of the population census is questionable. The sum of inhabitants in age groups does not meet the total number of inhabitants, as there is no information about the age of 73 inhabitants.
Within the framework of the project Merging Statistics and Geospatial Information in Member States undertaken in 2016–2017, geocoding of the PHC 2000 data was carried out by linking geographical coordinates and addresses.
Refer to the types of coordinate-address linking and the number of persons linked:
Areas in cities under state jurisdiction where share of usually resident population in the total number of city population has increased or decreased significantly; 2000–2017:
Population and Housing Census 2011
Just like in the official statistics, it is assumed that usual residence of 90.7 % of the usually resident population of Latvia is that indicated in the PHC 2011 questionnaire, while of those not met during the PHC – that indicated in the PR.
Addresses with the linked coordinates in the database are available on all persons, however not always they are correct and may not meet the addresses indicated in the questionnaire. For example, only a village is indicated in questionnaire, but the address of the building linked does not meet the actual one. Thus, comparison of the grid data with other periods may lead to inappropriate population change. For example, comparison of the situation at the PHC 2011 moment and beginning of 2018 shows that population within the grid cell 1kmX689Y309 (Lazdukalns rural territory of Rugāji municipality) has grown from 37 to 49, while in the neighbouring cell 1kmX689Y308 it has dropped from 44 to 18. Actually, address of part of the persons living in the cell 1kmX689Y309 in the PHC 2011 was wrongly indicated in the cell 1kmX689Y308. In some cases, the official PHC data on the location of usual residence have been corrected (territorial unit for 382 persons, code of the addressing object from the State Address Register for 454 persons).
Population estimate starting from 2016
Usual residence of usually resident population of Latvia is set based on the PR and data of the PHC 2011.
If after the PHC 2011 information in the PR is updated (about declared and registered residence, or residence address was indicated orally), it is assumed that residence of a person is the one indicated in the PR (code of the addressing object is used, if available).
If the reason behind the last update of the information about residence is cancellation of residence registration (false information was given or legal basis have been lost), person is included in the population of the administrative territory (municipality or city under state jurisdiction) in which residence of the person was declared or registered prior.
In some cases, codes of the addressing objects indicated in the PR for persons with residence permits are not used if there are too many persons in one address and it can be justified that those persons do not actually live there. In such cases, only territorial unit code is used.
Addresses of the residences of persons in prisons, social care institutions or orphanages are the addresses of the respective institution. Starting from the data about 2018, more sources about persons in social care institutions and orphanages are used. Thus, when compared to the data on previous two years, population change might not match the actual situation (e.g., sharp increase in population within the grid cell 1kmX656Y323 and Līgo rural territory of Gulbene municipality where social care institution Siltais is located).
In all other cases, it is assumed that usual residence of person is that indicated in the PHC 2011, except for cases when person was imprisoned at the PHC 2011 moment (starting from the data about 2018, located also in social care institution or orphanage), but is not in prison anymore, and information about residence of the person in PR has not been updated after PHC 2011 (about declared and registered residence, or residence address was indicated orally). In such a case, it is assumed that residence of the person is that indicated in the PR before the PHC 2011.
Assumption that usual residence of a person is that indicated in the PHC 2011 is based on the corrected addressing object or territorial unit codes.
In respect to the children without indicated addressing object code, parents’ code is used if the territorial unit code matches. In respect to the children without indicated territorial unit code, mother’s addressing object code is used.
The published data can be revised. Data in grid cells since 2016 are revised annually to ensure that data are comparable in case of altered addressing object coordinates.
Data calculated by using Classification of Administrative Territories and Territorial Units of the Republic of Latvia.