None of your links verify that statement. do you have a link that shows the numbers.
Icarus, I cant give you a link, but some years ago I looked at all the fatal accidents that were available on the ATSB web site. About 115 between 1990 and 2004 (call it 15 years). The accident reports wont call it a spin accident but the description always ends up like "low speed loss of control followed by ground impact in steep nose down attitude".
Of those 115 fatal accidents, 31 were stall/spins which lines up with Megans figure of 25% for the US. It's about 2* per year.
Further, of those 31;
2 were badly loaded aircraft
2 were visibility related (one night, one cloud)
3 were during aeros
9 followed after engine problems (mechanical issues or fuel, including one purposeful shut down)
15 were perfectly good aeroplanes where things just got out of hand.
*2 per year does not include gliders, which are less than GA, but one happens every few years. I have no data at all for RAAus (which would have to be similar to GA)
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