I just know your dying for some data from Canada:
http://www.cbc.ca/consumer/story/200...-statscan.html
"The report found that the median distance Canadians are travelling to work has increased to 7.6 kilometres in 2006, an increase of 8.6 per cent over the past decade. Commuters in Ontario (8.7 km), Nova Scotia (8.4 km) and Quebec (7.8 km) travelled the farthest to get to work, while workers in Nunavut (2.1 km), the Northwest Territories (2.9 km) and the Yukon (3.9 km) lived closest to their workplace"