Table 2 – Building characteristics, energy use and energy intensity by year of construction, 2014
Year of construction Buildings Floor space
# QI Share millions of m2 QI Share
Before 1920 27,108 B 5.6% 38.9 B 4.8%
1920 to 1959 86,760 A 18.0% 109.6 A 13.6%
1960 to 1969 51,004 A 10.6% 111.3 A 13.9%
1970 to 1979 95,861 A 19.9% 152.7 A 19.0%
1980 to 1989 69,096 A 14.3% 139.5 A 17.4%
1990 to 1999 68,978 A 14.3% 117.8 A 14.7%
2000 to 2009 64,112 A 13.3% 94.7 A 11.8%
2010 or later 19,483 B 4.0% 38.7 C 4.8%
Canada 482,402 A 100.0% 803.1 A 100.0%

Legend:

Quality indicators (QI) classify each estimate according to its quality as follows: A–20% or less, B–between 20% and 30%, C–between 30% and 40%, and F–more than 40%.