Probably just US, it would be hard to compile such data globally.
I dropped my friend a line and he answered back with a detailed description of his helo accident. It was one helluva freakish story.
They loaded an older lady in a hilly, wooded area not quite close to Ostrava (the largest city in the region, my birthplace). She had symptoms of a serious stroke, it was 1998, no one really expected her to live long, but not that short either.
A few minutes into the flight something (a nut?) exploded in the rotor and they went down like a stone. Very, very hard crash, still in a hilly, wooded area, but close to a big water reservoir, an artificial lake.
The lady died on impact. All other people on board survived with serious injuries, but they were saved by an unbelievable coincidence. A mine rescue team from Ostrava had a regular training on the lake and the helicopter crashed in their sight, less than a kilometer away. So they were there in like 3 minutes, dragged them to safety and put the burning wreck out.
If this was a movie, it would look totally unrealistic. But it happened.
Three months of rehabilitation and friend's lower back is still bad. He cannot stand completely upright, tilts slightly to a side.