This source looks more authoritative to me. Moreover, it contains figures relevant to what I think is the key figure: miles per person. That generally trends up, from 9k in 1994 to a peak of 10k in 2005. I don’t see any abrupt change in the trend. I’m rather surprised.
This source looks more authoritative to me. Moreover, it contains figures relevant to what I think is the key figure: miles per person. That generally trends up, from 9k in 1994 to a peak of 10k in 2005. I don’t see any abrupt change in the trend. I’m rather surprised.