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statistikk

2021-01-21T08:00:00.000Z

Population

samboer, Cohabitants, cohabitation, share of cohabitants, share of married persons, share of single persons, live-in relationshipChildren, families and households, Population

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Cohabitants

Updated

21 January 2021

Next update

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38 %

of the population aged 25-29 years are cohabitants

Proportion of cohabitants in different age groups. Per centPublished 21 January 2021
	1993-1995	1999-2001	2005-2007	2017-2019
20-24 years	25	22	30	22
25-29 years	35	39	40	38
30-34 years	24	30	31	37
35-39 years	15	20	24	27
40-44 years	10	16	20	23
45-49 years	8	11	16	21
50-54 years	6	8	10	18
55-59 years	4	7	8	17
60-69 years	3	4	6	10
70-79 years	1	2	2	5

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Table 1
Proportion of cohabitants, married and single by age. Per cent. Males and females.

Proportion of cohabitants, married and single by age. Per cent. Males and females.
Cohabitation, sex, age	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
Cohabitant
Males
16-19 years	1	2	1	2	2	1	1	1	1	3	3	1	1	1	2	2	3	1	1	1	2
20-24 years	17	11	14	27	19	18	25	23	24	21	24	19	18	21	18	22	20	15	17	16	21
25-29 years	39	35	36	37	40	43	37	39	40	37	29	33	41	31	40	36	37	34	33	38	34
30-34 years	32	37	33	33	37	31	29	31	37	30	28	28	36	34	37	34	41	38	42	38	41
35-39 years	23	22	19	27	26	27	25	24	26	28	26	31	28	29	31	33	36	29	29	28	31
40-44 years	15	14	21	15	22	17	24	19	23	19	23	22	19	20	24	22	20	25	24	25	26
45-49 years	12	13	9	14	18	14	18	17	16	20	21	17	21	24	20	16	21	22	22	24	23
50-54 years	11	7	10	11	14	15	9	12	10	11	15	16	13	16	19	17	18	16	19	14	20
55-59 years	9	6	7	10	7	12	8	11	10	11	9	11	12	14	12	17	15	21	22	16	17
60-69 years	6	3	6	7	5	6	7	7	7	8	5	7	6	8	9	9	11	10	7	13	12
70-79 years	3	3	1	2	3	6	2	3	4	4	2	4	4	6	7	5	7	4	5	6	6
Females
16-19 years	7	6	6	4	4	7	8	4	7	5	4	6	4	2	1	5	3	2	3	4	2
20-24 years	32	29	31	35	35	32	36	38	37	36	30	32	34	32	29	30	24	30	28	30	24
25-29 years	42	38	41	39	48	40	45	41	39	44	39	51	41	34	45	49	43	37	41	39	44
30-34 years	28	27	26	31	33	35	32	28	30	34	32	33	38	33	38	34	40	33	33	30	39
35-39 years	18	15	20	22	22	27	22	24	25	24	26	25	29	28	27	31	24	30	27	23	26
40-44 years	15	15	16	16	15	17	19	19	18	20	20	20	26	19	25	20	21	25	21	17	26
45-49 years	11	12	12	12	14	13	13	14	16	21	20	17	21	18	20	20	21	22	20	18	21
50-54 years	7	9	6	11	9	9	8	12	10	9	15	11	12	14	16	13	22	13	17	18	22
55-59 years	6	4	7	6	7	5	8	4	8	8	7	11	7	9	9	10	9	10	14	21	11
60-69 years	5	2	4	5	2	3	3	4	6	5	4	7	5	5	9	4	7	7	9	9	10
70-79 years	1	1	1	1	2	2	3	2	3	2	2	3	3	3	1	2	2	2	3	4	4
Married
Males
16-19 years	..	..	..	..	1	..	..	..	1	..	0	0	0	0	0	0	0	0	0	0	0
20-24 years	1	2	2	4	4	2	3	2	1	1	3	2	2	2	5	1	2	1	0	2	2
25-29 years	15	17	15	14	18	16	16	15	16	11	19	21	12	16	12	17	18	17	14	8	8
30-34 years	42	36	37	37	36	37	36	45	44	41	43	45	28	30	34	37	32	32	30	33	29
35-39 years	55	53	54	48	49	44	53	49	51	49	50	49	52	47	46	48	44	47	50	50	46
40-44 years	65	64	56	61	54	60	56	58	56	52	55	63	65	63	51	55	59	53	54	53	50
45-49 years	70	68	71	70	67	64	60	64	65	55	56	57	58	57	56	61	56	55	55	61	58
50-54 years	76	76	72	69	67	70	71	71	68	69	66	66	69	67	58	62	59	55	53	56	58
55-59 years	77	72	76	77	75	72	74	73	70	75	73	75	70	68	71	63	64	60	59	62	60
60-69 years	74	81	78	76	79	79	75	75	71	77	77	72	76	74	75	71	71	70	73	65	71
70-79 years	76	69	74	75	79	72	77	78	71	77	80	74	78	74	76	76	73	75	76	81	70
Females
16-19 years	1	1	0	0	1	0	1	1	0	..	1	0	0	0	0	0	0	0	1	0	0
20-24 years	8	4	6	5	8	4	6	7	5	7	5	7	6	4	6	3	3	4	2	3	1
25-29 years	30	31	25	29	24	26	23	27	30	23	27	21	21	28	20	28	15	19	18	16	13
30-34 years	48	53	49	50	43	46	41	48	47	49	42	52	40	42	43	45	38	42	44	45	41
35-39 years	60	65	59	56	58	56	56	58	54	56	54	57	57	50	56	53	53	53	55	55	53
40-44 years	62	64	62	63	64	61	59	60	59	61	62	59	52	66	55	57	57	53	49	58	57
45-49 years	71	72	67	69	63	58	63	61	62	61	56	55	53	61	61	56	59	53	59	53	56
50-54 years	71	72	72	69	70	66	64	64	70	67	60	60	66	61	58	57	55	60	55	59	55
55-59 years	69	75	71	75	74	62	69	67	70	69	61	61	68	64	71	61	62	64	61	52	53
60-69 years	68	68	65	60	64	70	67	64	61	68	65	69	71	65	62	68	62	67	64	62	61
70-79 years	50	42	43	51	53	42	50	47	49	53	56	47	46	55	59	54	54	51	56	59	59
Single
Males
16-19 years	99	98	99	98	97	99	99	99	98	97	98	99	99	99	98	98	97	99	99	99	98
20-24 years	87	84	69	76	80	72	75	75	29	77	73	79	80	77	77	77	79	84	83	82	77
25-29 years	46	48	48	48	42	41	47	46	45	52	52	45	46	53	47	47	45	48	53	55	58
30-34 years	26	27	30	29	27	32	35	24	20	29	28	27	36	36	29	29	27	30	28	30	29
35-39 years	23	25	27	25	25	29	22	27	24	23	24	21	19	24	23	20	21	25	22	21	23
40-44 years	19	22	23	23	24	23	20	23	21	29	23	15	16	17	24	23	21	22	22	21	23
45-49 years	18	19	19	17	16	23	22	20	19	25	23	27	21	20	23	23	23	23	23	15	20
50-54 years	13	17	18	19	18	15	20	17	22	20	20	19	17	17	23	21	23	29	29	29	22
55-59 years	15	22	17	14	17	16	18	16	20	14	18	14	18	17	17	21	21	20	20	23	24
60-69 years	20	16	15	18	16	15	18	19	22	15	18	21	18	18	16	19	18	20	20	22	20
70-79 years	21	28	25	23	18	22	21	19	25	19	18	22	18	21	17	19	19	21	19	13	25
Females
16-19 years	92	93	94	96	95	93	91	96	93	95	95	94	96	98	99	95	97	98	97	96	98
20-24 years	60	67	63	63	58	64	58	55	58	57	65	62	61	65	66	67	73	66	70	66	75
25-29 years	28	31	34	33	29	34	32	32	31	33	34	28	38	39	36	23	42	44	42	44	43
30-34 years	24	20	25	20	24	19	27	24	24	16	26	15	21	26	20	21	23	24	24	25	20
35-39 years	23	20	20	22	20	17	22	17	22	20	20	18	15	22	18	17	23	17	17	22	21
40-44 years	23	21	23	19	21	21	22	21	23	20	18	21	22	16	20	23	21	23	30	25	17
45-49 years	17	16	21	19	23	29	25	25	23	18	24	28	27	20	19	24	20	25	21	30	22
50-54 years	23	19	21	20	21	24	28	24	20	23	25	29	22	25	27	30	24	27	29	23	23
55-59 years	25	21	22	19	20	33	23	29	23	24	32	28	26	27	20	28	28	26	25	28	36
60-69 years	26	30	31	35	34	26	30	32	33	26	31	24	24	29	29	28	31	26	27	29	27
70-79 years	49	57	55	48	46	57	47	51	48	45	42	51	51	43	40	44	44	47	41	38	37

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About the statistics

Percentage of cohabitants in the population aged 16-79 years.

Definitions

Definitions of the main concepts and variables

Person
The statistics is based on a sample of all persons between 16-79 years who was resident in Norway according to the population register.

Couple
Two persons who lives in the same residence and is married to each other, registered partners or cohabiting is counted as a couple.

Standard classifications: Not relevant.

Administrative information

Name and topic: Name: Cohabitants
Topic: Population

Responsible division: Division for Population Statistics

Regional level: National

Frequency and timeliness: Every third year

International reporting: Not relevant

Microdata: Files on individual level containing data that are processed and stored in the long term.

Background

Background and purpose: The statistics is based on surveys and place of usual residence for women and men aged 16-79 years. It shows proportions of cohabitants, married and singles in different age groups. The first figures published are from 1977 for women and 1988 for men. Since 1993 annual figures have been published.

Users and applications: The statistics have a wide range of users and applications, including institutes involved in researching demographics and living conditions, public administration, the mass media and private persons.

Equal treatment of users: Not relevant

Coherence with other statistics

The statistics is based on a survey and whether a person is defined as a cohabitant or not depends on what answer the person himself gives to this question. In register based statistic one must be registered on the same legal residence address to be defined as cohabitants. Experience shows that statistics based on registers and legal residence address result in fewer cohabiting couples than statistics from surveys based on interviews and place of usual residence.

Families and households

Legal authority: Statistics Act, §§ 2-1, 2-2, 3-2

EEA reference: Not relevant

Production

Population: The statistics cover a sample of the Norwegian population in the age group 16 - 79 years.

Data sources and sampling

The sources for this statistics are the Population register in combination with the Travel survey.

The Travel survey is carried out among 8 000 Norwegians between 16 and 79 years of age, according to Statistics Norway's standard sampling procedure.

Collection of data, editing and estimations

Interview (telephone)/CATI

A computer is used during the interview. The interviewer reads the questions aloud from the screen and the answers are registered instantly. This allows the data to be controlled immediately, and it reduces the risk of asking the interviewee wrong questions.

The proportion of cohabitants in an age group is estimated by the number of people in an age group who have answered that they are cohabitants compared to everyone who has answered the questions on relationship status in the same age group. The proportion who are married/not in a relationship are calculated in the same way.

The total number of cohabitants is estimated by multiplying the estimated proportion of cohabitants in an age group by the mean population in the same age group.

Seasonal adjustment: Not relevant

Confidentiality: Not relevant.

Comparability over time and space: From 2005 data from Statistics Norway's Travel survey has been used. Former sources have been the Fertility survey 1977, Family and Occupation Survey 1988 and Omnibus Surveys 1993-2004. The questions have been the same in all surveys. It is expected that use of data from different surveys do not influence the comparability in the time series.

Accuracy and reliability

Sources of error and uncertainty

Collection errors, like when the interviewee gives incorrect information, or processing errors, like when the interviewer registers the answer incorrectly, are tried kept to a minimum by automatically controlling the answers during the interview. Nevertheless, there may still be some errors left. The number and kind of errors are not known.

The unit non-response has inceased somewhat over the years, and is approximately 40 per cent. Non-response errors are errors caused by unit non-response, i.e. that the unit (for instance an individual or a company) has failed to respond, or item non-response, i.e. that the unit has failed to respond to some but not all the questions in the survey.

Bias
Sampling bias may arise when the distribution of some variables in the sample is not the same as the corresponding distribution in the population. The results in this survey are based on the information provided by those responding. Non-response is mainly due to the interviewee not wanting to participate or that he/she was not reached by the interviewer. If the interviewee was not reached due to he/she being on holiday, the distribution of this variable among those interviewed and the non-respondents may differ and sampling bias may arise.

Variance
The Travel survey is carried out among a sample of persons resident in Norway between 16 and 79 years of age. The uncertainty of findings based on only a part of the population, (sampling variance) depends among other factors on the number of observations in the sample and on the distribution of the current variable in the whole population. An estimate of this uncertainty (standard deviation) can be constructed by means of the observations in the sample. There is not made an exact calculation of the standard deviation for this survey.

Revision: Not relevant

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Contact

Ane Margrete Tømmerås

ane.tommeras@ssb.no

(+47) 91 99 29 62
Anders Sønstebø

anders.sonstebo@ssb.no

(+47) 46 66 37 74
Statistics Norway's Information Centre

informasjon@ssb.no

(+47) 21 09 46 42

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