Central Indiana Bicycle Assn, Inc.
In 2003, there were 622 bicycling fatalities and 46,000 bicycling injuries resulting from traffic crashes in the United States. While these numbers continue to decrease from year to year, bicyclist fatalities still account for 1.5 percent of all traffic fatalities as well as 2 percent of all traffic injuries.
Here is a great place to start, http://bicyclesafe.com/