DC - 2004 (when I was deeply involved in statistics for DC, crime and otherwise) cyclists where found at fault for the majority (only slightly) of accidents they where involved in: http://www.washingtonpost.com/opinions/bicyclists-are-welcom...

It is my understanding that a new study is underway to see how Capitol Bikeshare (2500+ bikes rented from like little bike vending machines) has impacted this number (very new). Nothing will be publicly released for another year or so, but I suspect the outcome will be a much higher "at fault" rate for unskilled tourist bicyclists making that number even more skewed.

EDIT: Additionally, from reading this thread, it seems like cyclists who don't follow road rules are also a terror for pedestrians.