In New York there were 5,336 motorcycle accidents with 168 fatalities in 2011. It is estimated that 1/2 the non-fatal accidents are never reported.
Of the fatalities (168 total):
Unsafe speed: 71
Left-hand turn: 37
Alcohol: 16 Illegal drug use: 1
They have stats on helmets use too, but NYS is a mandatory helmet use state. Never-the-less, there were 9 fatalities without helmets. The rest were with helmets. Worthless for the OP, but notable.
1 accident due to hand-held cell phone usage.
5 accidents due to falling asleep.
0 accidents due to texting
0 accidents due to GPS
You can read the extensive statistics on 2011 motorcycle accidents in New York here: http://www.dmv.ny.gov/Statistics/201...ashSummary.pdf