The message
from "Mary Fisher" contains these words:

I don't LIKE motor bikes of any kind but it seems that they're involved in
fewer accidents than cars, per capita.

This remark has bugged me so I thought I would try and track some
figures down.

In 2005 the rate for killed or seriously injured per 100 million vehicle
kilometres was 120 for motorcycle users and 4 for car users.

Not sure what Mary really means by per capita but it ISTM that
motorcycling is inherently far more dangerous than travelling by car.

--
Roger Chapman