P. 136 of this pdf tells us that the average internal winter temperature of homes in Great Britain in 2010 was 16.9°C (62.4°F).
I am interested in finding the corresponding figures for other developed countries (e.g. US, Japan, Germany), where can I find these?
My anecdotal experience in the US is that the standard winter thermostat setting is 70°F (21.1°C). Reducing it to say 68°F (20°C) tends to require a concerted campaign, even at a liberal arts college.
My belief and hope is that if people in the US were made aware that people from equally rich countries are able to suffer much lower temperatures, then so can they. But first I'd like to know where such statistics/data can be found.
Quote that inspired me to look for these data:
I recall the English (now American) economist Ronald Coase telling me that until he visited the United States he did not know it was possible to be warm. (NYT, 2012)