Population and Housing Censuses National Results Buildings by type of building and by no. of floors under ground level Units: buildings ;Total;Mainly or exclusively for dwellings;Other purposes; Total;9,814,785;9,730,999;83,786; 0;9,325,167;9,247,273;77,894; 1;454,603;449,315;5,288; 2 or over;35,015;34,411;604; Notes: Source: National statistics Institute