02.01.20 - Families, households
Annual
Municipalities and urban district in the four largest cities.
320 - Division for Population Statistics
Statistics Act of 16 June 1989 no. 54, Sections 2-1, 2-2, 3-2 (Questionnaires/registers).
Not relevant.
At present no international reporting, but the statistics will in the future be used in reporting to UN and Eurostat.
Family and household statistics shall describe how families and households in Norway are composed per 1 January, that is, family and household statistics offers a cross-sectional picture of the family and household patterns. Since 1975 family statistics have been produced on the basis of information from the Central Population Register, at the beginning in line with the census family statistics of 1960 and 1970. The most profound changes in the statistics are the following:
Cohabiting couples (with at least one common child) were incorporated for the first time per 1 January 1993. Figures for 1987, 1989 and 1991 were produced at the same time.
From 1 January 1989 the age limit for being classified as a child was lowered from 20 to 18 years. Statistics for 1 January 1989 have also been provided with an age limit on 20 years.
Since 1 January 1995 registered partnerships (same sex couples) were included. Registered partnerships are counted together with married couples (with or without children).
Following a quality assessment in 1999, family statistics dating from 1 January 1999 are published with fewer details. The number of family types was reduced from five to three: married couples without children, married couples with children, cohabitant couples with common children, and other type of families. Registered partnerships are included in figures for married couples (see also 4.1 and 6.1).
As of 1 January 2001 an adjusted definition of cohabiting couples with common children was put to use. The change has resulted in a somewhat lower figures for cohabiting couples (see also 6.1).
Family statistics were published every second year until 1 January 1999. Since then the statistics are published annually.
Per 1 January 2005 relatively large changes in the annual family statistics were put into effect. The introduction of a unique address for all dwellings made it possible to produce statistics also for cohabiting couples without common children. Furthermore the introduction of a unique address for all dwellings made it possible to produce an annual household statistics based on registers and formal address, that is statistics according to the household-dwelling concept. These changes are described in more detail in 6.1 and 6.2.
The statistics have a wide spectrum of users and applications, including research institutes studying demographics and living conditions, public administrations, the mass media and private persons.
The family and household file, which is the basis for family and household statistics, is used in the production of several subject matter statistics within Statistics Norway.
Family and household statistics cover all persons registered as residents in Norway on 1 January.
The statistics are based on data from The Central Population Register (CPR), The Cadastre and The Central Coordinating Register of Legal Entities (business register).
The National Population Register (NPR) was built up from 1964 to 1966 on the basis of the 1960 Census, and at the same time the 11-digit national identity number was introduced as personal identification. The register contains those who took part in the census and further everyone who has been resident in Norway since 1 October 1964. In 1995 the Central Population Register at the Directorate of Taxes took over as the official register. The Office of the National Registrar, which administrates the CPR (and formerly the NPR), was in 1991 transferred from Statistics Norway to the Directorate of Taxes.
Updating of the Central Population Register is done partly by the regional population registries, which are connected to the CPR database via terminals, and partly by the Directorate of Taxes. Statistics Norway receives electronic copies of all these register updates. The reports are used to update a separate Statistics Norway population database kept for statistical purposes, which forms the basis for the statistics on the structure of the population and population changes.
Persons are grouped into families in the CPR through the allocation of family numbers. The family number is maintained by reports on marriages, divorces, deaths, migrations etc. Families in the CPR comprise married couples with or without children, lone parents with children and persons living alone. Only children who are registered on the same address as their parent(s) are counted as family members.
In order to produce figures for cohabiting couples and two or more-family households, and hereby all types of families and households, Statistics Norway processes information from the CPR. In addition some information from The Cadastre and the business register are used in this process. Data from the same registers are used to identify persons not living in private households (living in institutions, of no fixed abode)
Data on basic statistical units are taken from the address part of The Cadastre.
Not relevant
Reports (electronic copies) have been transferred daily from the CPR to Statistics Norway since January 1998, as opposed to previous monthly reports. Reports from The Central Coordinating Register of Legal Entities are also electronically transferred daily to the Business Register of Statistics Norway. Statistics Norway downloads updates from The Cadastre once a month.
In order to expand the statistics to comprise all cohabiting couples and also multi family-households, it was necessary to develop a comprehensive system for data processing, control and revision. This was essential done to be able to decide which persons that constituted couples, families and households in these particular cases. Especially errors and shortcomings in address information at the dwelling level made this necessary. The comprehensive system of data processing combines information on families and households from the questionnaire part of the Population and Housing Census 2001 with information from the registers mentioned in chapter 3.2 per 1. January.
The system for data processing, control, and revision mentioned above classifies two persons as a cohabiting couple if they are living in the same household, are the only adults living in the household, are of opposite sex, are not related, are 18 years or older and the age difference between them are less than 16 years.
The statistics is based on a full count of all persons, families, and households in Norway. From this point of view the estimation should be fairly simple. But due to shortcomings in the address information at the dwelling level, particularly in Oslo, we have to use a statistical method to adjust the results for persons living in multi-dwelling buildings. It is only figures for persons living in multi-dwelling buildings which are adjusted. Person figures for living, couples, families and households are adjusted and the adjustment is based on 6 different types of households, 7 age groups and sex (126 groups per region).
In the family- and household statistics figures for type of family and type of household for each municipality are published without suppression. This may reveal low values for some types of families and households in small municipalities. The statistics will still not be identifying beyond the information already needed to recognise specific households in the statistics. Due to quality problems (see 3.4 and 3.5) small figures in tables are not exact values, but rather inaccurate estimates.
Person
The statistics covers all persons considered resident in Norway, according to the Central Population Register, on 1 January. The Population Registration Act of 16 January 1970 (with later amendments) and its provisions from 1994, define persons that are considered resident in Norway and how their address is determined. The total number of persons resident in an area is known as the total population.
Couple
Two persons are considered a couple when they are registered as resident in the same household and are married to each other, registered partners or cohabitants, i.e. living together without being married or having a registered partnership. In addition to be living in the same household and be of opposite sex, two persons must fulfil at least one of the following requirements to be considered a cohabiting couple:
- have a child in common
- have checked out for being cohabitants in the Census 2001 questionnaire
- have been classified as a cohabitant couple in the system for data processing, control and revision mentioned in 3.5
The data quality is not good enough to identify same sex cohabitants, and statistics for this group is accordingly not published.
Separated couples registered as resident in the same dwelling are considered a couple when they fulfil at least one of the 3 requirements above. Because a separated couple legally still is considered to be married, they are classified as married couples in the family and household statistics. Divorced couples still living in the same household fulfilling the same requirements are classified as cohabiting couples.
Child
A child is defined as any person with no partner and no own children, who has de jure place of usual residence in the household of at least one of their parents. A child is either biological or adopted or a stepchild. A foster child is not considered a child.
Family
A family consists of persons resident in the same dwelling and related to each other as spouse, registered partner, cohabitant, and/or parent and child (regardless of the child's age). At most, a family may consist of two subsequent generations and one couple only. This means that persons that are married or cohabiting and/or living with their own children, do not belong to their parents' family. When persons that have previously been married are living with their parents, this is regarded as two families. Single persons are also considered a family, whereby all persons are part of a family, either together with others or on their own.
Household
A household consists of persons that are permanently resident in the same private dwelling or institution. These households are known as dwelling households. The present statistics does not include any information on housekeeping units, i.e. persons living in the same dwelling with joint board.
A private household comprises persons resident in the same dwelling, where this dwelling is not an institution. An institutional household comprises persons who have board, lodging, care or nursing at an institution. Employees that are resident in an institution are always considered resident in a private household. The statistics does not provide any figures for institutional households; however the number of persons not living in private households is given. This group is referred to as resident in Other households and comprises persons resident in institutional households as well as persons of no fixed abode.
The composition of households according to legal address is based on information from the registers mentioned in 3.2 and the system of data processing, control and revision described in 3.5 Households may consist of one or more families. Persons belonging to the same family also belong to the same household. If persons who do not belong to the same family are to be considered a household, they have to be registered at the same address in the Central Population Register. This means that unmarried students living away from home but registered at their parents' address are considered part of their parents' household. Similarly only persons that are registered in the Central Population Register as resident at an institution are regarded as belonging to an institutional household. Many persons who live in institutions, e.g., homes for the elderly and nursing homes, are registered as residents in a private dwelling (together with their spouse).
Standard classification of family type 2006
Single persons are also considered a family, whereby all persons are part of a family, either together with others or on their own. A family that consists of two or more persons is known as a family nucleus. The Norwegian standard classification of families deviates somewhat from international recommendations. Internationally it is not recommended to include persons living alone in family statistics.
Families with children are families where at least one child is registered as resident together with the parent(s). Families without children are either de facto childless, or families where the children have moved out of the family home (registered migration).
The number of couples with/without children will vary depending on whether an age limit is set for children living at home. Based on an age limit of 18 years for children, couples with children over the age of 18 years will be classified as couples without children 0 - 17 years.
Standard classification of households 2006
The standard classification classifies the households by types of families in the household. Since the definition of a family deviates a little from the international recommendations the classification of households will also differ a little from what is recommended internationally. If required it is possible to produce figures in accordance with international standards.
The main source for the statistics is the Central Population Register. Some errors made during the collecting and processing of the data are unavoidable; include errors in coding, revision and data processing. Extensive efforts have been made to minimize these errors, and Statistics Norway regards these types of errors to be relatively insignificant.
The statistics is based on a total count of the whole population. For some persons the residential address is incomplete as the dwelling number is not included. This may be regarded as item non-response, but are here described in 5.4.
Not relevant.
The main quality problem is the incomplete registration of dwelling numbers for persons living in multi-dwelling houses. These persons are said not to have a unique address and this create problems in the formation of families and households. Per 1 January 2005 7 per cent of the population did not have a unique address, and the corresponding figure for Oslo was 22 per cent.
To improve the quality, rather comprehensive editing of the input data have been conducted (see 3.5). To further improve the regional figures, especially for Oslo, the data have been adjusted at a macro level (see 3.6). No specific calculations of accuracy have been done, but the figures are assessed to be somewhat less accurate than for instance the corresponding figures from the 2001 Census (where census forms were used to collect additional information).
From 1 January 1989 the age limit for being classified as a child was lowered from 20 to 18 years. To facilitate comparisons, statistics for 1 January 1989 have been provided with an age limit on 20 year also.
Cohabitant couples (with at least one common child) were incorporated for the first time per 1 January 1993. Figures for 1987, 1989 and 1991 were produced at the same time.
Since 1 January 1995 registered partnerships have been included. Registered partnerships are counted as married couples (with or without children).
Effective from 1 January 2001 the definition of cohabiting couples with common children and living on the same address has been changed: Legally separated couples with common children and living on the same address have previously been registered as cohabiting couples with common children, due to the statistical definition of cohabitant couples (that is, common child(ren) and identical address). From 1 January 2001 these separated couples are excluded from this category and included in the group "Other type of family" instead.
Per 1 January 2005 relatively large changes in the annual family statistics were put into effect. The introduction of a unique address for all dwellings made it possible to produce statistics for cohabitant couples regardless of common children or not. Because of this we could raise the number of types of families in the published statistics from only three to all family types included in the standard (in total 24 at the most detailed level). After the change we no longer publish separate figures for cohabiting couples with common child. In the present statistics we only differ between cohabitant couples with children (regardless if it is common or not) and cohabiting couples without children. Furthermore the introduction of a unique address for all dwellings made it possible to produce an annual household statistics based on registers and formal address, that is statistics where all persons registered as living in a housing unit comprises the household (the household-dwelling concept). Previously it was only possible to produce household statistics based on a count of all individuals once every decade. This was done in connection with the Population and Housing Censuses, and the statistics was based on census forms.
Family and household statistics are related to children statistics. Whereas the family is the focus in family statistics, children are the units in children statistics. Children statistics can provide a more detailed picture of the family pattern than family statistics.
The new family and household statistics based on registers will be comparable with the family and household statistics from the Population and Housing Censuses based on questionnaires. There may, however, occur minor deviations in the time series due to changes in data sources and methods for compiling families and households. Tabulations from the three latest Censuses (1980, 1990, and 2001) have been made according to the current standard classifications of households and families.
Figures on the percentage of cohabitants in different age groups by sex is published based on information from the annual Travel Survey. In this survey the cohabitans are not required to be registered at the same adress in the CPR to be considered a couple. Statistics on marriages, registered partnerships, separations and divorces give information about formal family formation and family break-up.
The terms family and household must not be confused. A household can consist of several families and also of more than two generations, whereas a family can have one or maximum two generations (parent/child). The number of families will therefore always exceed the number of households.
The Population and Housing Censuses also publish figures for households and for families
Figures are available in the StatBank Norway (see link to the left)
The statistics are published electronically (text, tables and figures) via Today's statistics . The statistics are published in NOS Population Statistics (both hard copy and electronically). Selected results are also published in the Statistical Yearbook of Norway and long time series in Historical Statistics 1994 In the period 1996-2000 the series Aktuelle befolkningstall (Current Population Statistics) was produced (both hard copy and electronically), and the booklets that contain statistics on children and families is entitled Familier og barn (Families and Children). Documentation: Dokumentasjon av registerbasert familie- og husholningsstatistikk.
Data files at the individual level that are processed and stored long-term.
Special tables In addition to the tables that are published, it is possible to order more detailed tables by contacting Statistics Norway on tel +47 62 88 54 00, Division for Population Statistics or oppdragbefolkning@ssb.no. The price will depend on the size of the order.
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