Losses of yaw control on helicopters
I fully agree that the number of accidents should be related to the number of flight hours. I was not able to find the information.
I do not say that the helicopters that have the largest number of accidents are worse and in fact they are probably only the most numerous. It is however not fair to point out a specific one. The conclusion I would draw from that figure is that the huge number of losses of yaw control has surely little to do with the helicopter design.