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