Population and Housing Censuses  
National results
Main dwellings according to construction year (added and detail of the last ten years) by number of rooms
Units: main dwellings

	Total (number of rooms)	1	2	3	4	5	6	7	8	9 or more	
Total	18,083,692	148,686	630,929	1,932,303	3,723,906	6,746,050	3,244,630	917,030	402,101	338,058	
Before 1900	597,453	10,041	30,954	69,088	120,482	155,006	103,457	49,300	27,949	31,175	
From 1900 to 1920	358,404	5,904	19,900	46,106	80,828	93,798	59,371	25,404	13,065	14,029	
From 1921 to 1940	490,702	6,431	25,682	64,222	113,841	137,234	78,162	31,781	17,315	16,034	
From 1941 to 1950	546,733	5,030	22,651	64,034	126,582	167,845	90,171	36,951	17,562	15,907	
From 1951 to 1960	1,315,009	8,070	50,557	161,150	331,553	448,956	192,270	64,803	31,246	26,403	
From 1961 to 1970	2,703,119	17,517	93,271	326,062	658,051	1,062,185	368,945	98,266	41,641	37,181	
From 1971 to 1980	3,720,472	23,185	89,505	378,720	682,605	1,555,642	716,740	155,587	64,658	53,830	
From 1981 to 1990	2,242,375	14,962	55,555	193,290	370,612	831,640	533,273	136,681	58,492	47,869	
From 1991 to 2001	2,598,718	19,601	84,971	244,695	491,866	970,701	526,121	151,879	61,979	46,905	
2002	280,953	2,648	11,136	27,526	57,818	110,929	48,443	13,368	5,285	3,800	
2003	304,730	2,283	11,585	30,538	61,791	118,036	53,778	16,155	6,213	4,350	
2004	346,774	3,084	14,591	35,286	71,154	130,072	62,122	18,158	7,454	4,854	
2005	452,401	4,943	18,663	48,701	98,205	169,759	75,179	22,863	8,175	5,913	
2006	406,372	4,499	18,180	47,066	87,251	150,889	66,741	18,807	7,723	5,215	
2007	369,165	4,630	16,370	42,249	78,540	135,863	61,653	17,565	7,051	5,245	
2008	323,378	4,128	16,951	36,256	67,289	122,223	51,259	15,005	6,165	4,102	
2009	220,346	2,507	10,924	24,291	48,461	81,301	34,861	10,087	5,091	2,824	
2010	151,828	1,322	7,222	17,781	33,002	56,424	23,372	7,581	3,057	2,069	
2011	99,608	974	4,257	9,338	19,877	37,606	17,989	5,243	2,606	1,719	
No data recorded	555,155	6,927	28,005	65,904	124,096	209,942	80,723	21,548	9,375	8,634	
Notes:
Source: National Statistics Institute