Actually, Everest is considered as on the easier side for an eight-thousander [1]. Annapurna got %38 (2007 figures) [2] and K2 got %25 [3].

For some interesting discussion on Everest fatalities, try this one [4]. "No shortcuts to the top" by Ed Viesturs and the well known "Into thin air" by Jon Krakauer are two good books on the subject, if you want to read more.

[1] http://en.wikipedia.org/wiki/Eight-thousander [2] http://en.wikipedia.org/wiki/Annapurna [3] http://en.wikipedia.org/wiki/K2 {4] http://news.ycombinator.com/item?id=1978295