According to Wiki, http://en.wikipedia.org/wiki/Canada http://en.wikipedia.org/wiki/Canada, 75% of the population lives within 90 miles. So I was off a bit :).

According to Wiki, http://en.wikipedia.org/wiki/Canada http://en.wikipedia.org/wiki/Canada, 75% of the population lives within 90 miles. So I was off a bit :). You're likely right about the reason though! (climate)