Main dwellings in buildings destined mainly for dwellings with some type of heating method according to year
of construction of the building (grouped) by fuel used
. 47-Valladolid

  TOTAL Before 1900 1900-1920 1921-1940 1941-1950 1951-1960 1961-1970 1971-1980 1981-1990 1991-2001
TOTAL     166726 6784 2248 2725 4768 16000 37703 40085 26363 30050
      57,00% 22,29% 25,22% 30,02% 39,95% 54,34% 66,51% 56,01% 48,86% 70,29%
Gas    
Electricity     9,69% 16,47% 18,02% 17,87% 14,53% 13,43% 12,25% 6,76% 10,35% 4,17%
Petroleum or derivatives     25,85% 32,89% 33,90% 28,22% 26,74% 20,12% 15,31% 32,21% 34,95% 23,12%
Wood     4,47% 21,18% 17,35% 17,80% 12,67% 6,31% 2,54% 2,84% 3,74% 1,50%
Coal or derivatives     2,13% 3,97% 4,14% 4,77% 4,03% 4,81% 2,67% 1,42% 1,29% 0,60%
Others     0,85% 3,21% 1,38% 1,32% 2,08% 1,00% 0,72% 0,75% 0,80% 0,33%