Changes in Number of Households by Household Structure

Year	Total (A)	Single person households	Nuclear family households	Three generations family households	Other households	Elderly households (B)
Total	Household of a couple only	Household of a couple and unmarried children only	Household of a single parent and unmarried children only
Estimated number (1,000 households)	Estimated number (1,000 households)
1975	32,877	5,991	19,304	3,877	14,043	1,385	5,548	2,034	1,089
1980	35,338	6,402	21,318	4,619	15,220	1,480	5,714	1,904	1,684
1985	37,226	6,850	22,744	5,423	15,604	1,718	5,672	1,959	2,192
1990	40,273	8,446	24,154	6,695	15,398	2,060	5,428	2,245	3,113
1993	41,826	9,320	24,836	7,393	15,291	2,152	5,342	2,328	3,913
1994	42,069	9,201	25,103	7,784	15,194	2,125	5,361	2,404	4,252
1995	40,770	9,213	23,997	7,488	14,398	2,112	5,082	2,478	4,390
1996	43,807	10,287	25,855	8,258	15,155	2,442	5,100	2,565	4,866
1997	44,669	11,156	25,911	8,661	14,903	2,347	4,999	2,603	5,159
1998	44,496	10,627	26,096	8,781	14,951	2,364	5,125	2,648	5,614
1999	44,923	10,585	26,963	9,164	15,443	2,356	4,754	2,621	5,791
2000	45,545	10,988	26,938	9,422	14,924	2,592	4,823	2,796	6,261
2001	45,664	11,017	26,894	9,403	14,872	2,618	4,844	2,909	6,654
2002	46,005	10,800	27,682	9,887	14,954	2,841	4,603	2,919	7,182
2003	45,800	10,673	27,352	9,781	14,900	2,670	4,769	3,006	7,250
2004	46,323	10,817	28,061	10,161	15,125	2,774	4,512	2,934	7,874
2005	47,043	11,580	27,872	10,295	14,609	2,968	4,575	3,016	8,349
2006	47,531	12,043	28,025	10,198	14,826	3,002	4,326	3,137	8,462
2007	48,023	11,983	28,658	10,636	15,015	3,006	4,045	3,337	9,009
2008	47,957	11,928	28,664	10,730	14,732	3,202	4,229	3,136	9,252
2009	48,013	11,955	28,809	10,688	14,890	3,230	4,015	3,234	9,623
2010	48,638	12,386	29,097	10,994	14,922	3,180	3,835	3,320	10,207
2011	46,684	11,787	28,281	10,575	14,443	3,263	3,436	3,180	9,581
2012	48,170	12,160	28,993	10,977	14,668	3,348	3,648	3,370	10,241
Percentage distribution (%)	(B) / (A) x 100
1975	100.0	18.2	58.7	11.8	42.7	4.2	16.9	6.2	3.3
1980	100.0	18.1	60.3	13.1	43.1	4.2	16.2	5.4	4.8
1985	100.0	18.4	61.1	14.6	41.9	4.6	15.2	5.3	5.9
1990	100.0	21.0	60.0	16.6	38.2	5.1	13.5	5.6	7.7
1993	100.0	22.3	59.4	17.7	36.6	5.1	12.8	5.6	9.4
1994	100.0	21.9	59.7	18.5	36.1	5.1	12.7	5.7	10.1
1995	100.0	22.6	58.9	18.4	35.3	5.2	12.5	6.1	10.8
1996	100.0	23.5	59.0	18.9	34.6	5.6	11.6	5.9	11.1
1997	100.0	25.0	58.0	19.4	33.4	5.3	11.2	5.8	11.5
1998	100.0	23.9	58.6	19.7	33.6	5.3	11.5	6.0	12.6
1999	100.0	23.6	60.0	20.4	34.4	5.2	10.6	5.8	12.9
2000	100.0	24.1	59.1	20.7	32.8	5.7	10.6	6.1	13.7
2001	100.0	24.1	58.9	20.6	32.6	5.7	10.6	6.4	14.6
2002	100.0	23.5	60.2	21.5	32.5	6.2	10.0	6.3	15.6
2003	100.0	23.3	59.7	21.4	32.5	5.8	10.4	6.6	15.8
2004	100.0	23.4	60.6	21.9	32.7	6.0	9.7	6.3	17.0
2005	100.0	24.6	59.2	21.9	31.1	6.3	9.7	6.4	17.7
2006	100.0	25.3	59.0	21.5	31.2	6.3	9.1	6.6	17.8
2007	100.0	25.0	59.7	22.1	31.3	6.3	8.4	6.9	18.8
2008	100.0	24.9	59.8	22.4	30.7	6.7	8.8	6.5	19.3
2009	100.0	24.9	60.0	22.3	31.0	6.7	8.4	6.7	20.0
2010	100.0	25.5	59.8	22.6	30.7	6.5	7.9	6.8	21.0
2011	100.0	25.2	60.6	22.7	30.9	7.0	7.4	6.8	20.5
2012	100.0	25.2	60.2	22.8	30.5	6.9	7.6	7.0	21.3

Source: Up to 1985 - “Basic Survey on Health and Welfare Administration”, Statistics and Information Department, Minister’s Secretariat, MHW

From 1986 on - “Comprehensive Survey of Living Conditions”, Statistics and Information Department, Minister’s Secretariat, MHLW (Note) 1. (1) “Singles person households” indicates a household of one person.

(2) "Household of a couple only" indicates a household consisting only of a householder and his/her spouse.

(3) "Household of a couple and unmarried children only" indicates a household consisting only of a couple and their unmarried children.

(4) "Household of a single parent and unmarried children only" indicates a household consisting only of either father or mother and his/her unmarried children.

(5) “Three generations family households” indicates a household consisting of lineal three or more generations centered by the householder.

(6) “Other households” indicates households other than those mentioned in (1)-(5) above.

2. "Elderly household" indicates a household consisting of persons aged 65 or older possibly with unmarried persons younger than 18.

3. The figures for 1995 exclude Hvogo Prefecture.

4. The figures for 2011 exclude Iwate, Miyagi, and Fukushima Prefectures.

5. The figures for 2012 exclude Fukushima Prefecture.