The thrust of this has been around for a long time (that health benefits of
cycling outweigh health problems from cycle accidents) but what I did find
interesting (at least for Oz) was -
Cycling deaths decreased by 82% from 1950 to 2003 (142 pa down to 26 pa)
over a period when both numbers of cars and cyclists substantially
increased.
Incidence of road death in cyclists 7 times lower than incidence in
pedestrians, although incidence of serious injury roughly the same as
between cyclists/pedestrians.
Greatest risk group for seriously injured were kids 16 or younger (46% of
total).
Newspaper article at -
http://www.theaustralian.news.com.au/common/story_page/0,5744,11627517%5E1702,00.html
Underlying data at -
http://www.atsb.gov.au/road/mgraph/mgraph17/index.cfm
best, Andrew