I'm not sure where you're getting this. This link doesn't have pages and it gathers information from a variety of sources.
The top of the report clearly says, "50% of crashes are a single bicycle accident (HOPE)" and "21% of crashes are a bicycle-bicycle crash (HOPE)". Is it possible that only 29% involve cars?
The top of the report clearly says, "50% of crashes are a single bicycle accident (HOPE)" and "21% of crashes are a bicycle-bicycle crash (HOPE)". Is it possible that only 29% involve cars?