"Figure 4: Dwellings that were constructed more recently had higher median energy efficiency scores than older dwellings","" "Median energy efficiency score, by property age, England and Wales, up to March 2022","" "","" "Notes","" "Unit","Median energy efficiency score" "","" "Country or region name","Wales","England" "2012 onwards","83","83" "1983 to 2011","71","71" "1930 to 1982","65","65" "Pre 1930","57","59"