You may not want to read this factsheet (and who can blame you?) but it does provide a national breakdown of reported cyclist casualties and deaths between 2011 and 2016. One immediate fact that jumps out at you is:
Around 92 per cent of all reported cyclist casualties and 75 per cent of fatalities involved a collision between a pedal cycle and one motor vehicle.
Failure to look properly – 51% of cyclists and 69% of vehicle drivers – is also a feature.