Latest data I found was ended at year 2016.
Home
Recall the infamous statement about statistics....."The use of Statistics is similar to a Drunk using a Lamp Post....far more for support than illumination.".
This is interesting reading re "Safety" evolution for Helicopters.
The section that discusses "myths" of helicopter safety and improvements is very relevant.
http://www.ihst.org/portals/54/indus...istory_Fox.pdf