[kurthr]

Hmmm... I think I read the same insurance statistic and the number was 17.9 years, which is close enough. The concerning bit was that the number came from insurance claims not accidents, which might be under-reported, because nobody wants their insurance to go up! As a result many parking bumper dings, minor side swipes of other cars, bicycles, and pedestrians probably aren't reported.

Otherwise, judging from the bumpers of most cars in NY/SF... I would guess that each person had filed hundreds of claims.