Population and Housing Censuses  
National Results
Buildings mainly or exclusively for housing by year of construction (aggregate)and by the facilities of the building
Units: buildings: percentage

;Total;Before 1900;From 1900 to 1920;From 1921 to 1940;From 1941 to 1950;From 1951 to 1960;From 1961 to 1970;From 1971 to 1980;From 1981 to 1990;From 1991 to 2001;From 2002 to 2011;
Total (absolute values);9,730,999;793,401;366,416;431,216;481,269;863,630;1,052,009;1,495,132;1,360,191;1,417,202;1,470,533;
Accessible (%);23.09;21.58;22.85;23.25;23.46;22.92;22.27;23.34;21.97;20.88;27.41;
With lift (%);6.27;1.05;1.86;2.26;2.23;2.87;6.32;8.24;5.73;7.79;11.65;
With garage (%);34.65;11.77;13.49;13.91;14.38;14.93;20.60;32.58;44.72;53.65;61.08;
With gas (%);25.68;15.77;16.73;20.27;20.92;25.72;27.81;25.35;25.12;31.79;29.84;
With telephone laying (%);92.05;82.49;86.00;89.11;90.05;92.51;94.39;93.35;93.56;94.12;93.55;
With sewage disposal by sewage system (%);90.13;84.44;88.46;91.13;91.94;92.31;92.20;88.20;89.22;92.09;90.86;
With another system of sewage disposal (%);9.19;13.05;9.96;7.76;7.13;6.97;7.22;11.10;10.15;7.91;9.14;
With central hot water (%);43.40;43.01;42.24;42.63;43.57;41.16;40.73;44.62;46.36;42.33;44.33;
Notes:
Source: National statistics Institute