Taken from a study of the of the Griffin Helicopters accident database since 09 Jan 1997 the study comprises a review of 366 rotary wing accidents and incidents involving UK registered aircraft of which 348 involved helicopters and 35 were fatal.

It should be noted that the role of the aircraft is not always clear from the accident report, as such the total number accidents will always be lower than that shown in the rest of the study.
A graph of UK Helicopter Accident Roles.+/-
CountOfCause
Dual Training
44
Solo Student Training
31
Offshore Support
15
Load Lifting
5
Filming
4
Search and Rescue
4
Test Flight
4
Emergency Medical Service
3
Commercial Air Transport
2
Corporate
2