I seem to remember CM Mendelson asked a similar question during his recent bike/ped enforcement special hearings. Chief Burke was unable to answer on the spot but promised to provide a detailed report to the committee at a later date. I think.
Generally though, it’s debatable whether bicycle-related issues are uniformly reported to the degree that statistics are particularly useful. Apparently some of the forms and databases used lump some bicycles in with property or motor vehicles, some cyclists in with pedestrians or motorists, and some bikeways in with sidewalks or highways. This changes where cyclist citations would be found in reports, but also sometimes changes the applicable laws. Once we get raw numbers nobody can actually say how right or wrong they are.
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