There are a lot of other planes as well, but to tell you the truth, there are a lot of smaller canadian planes out there. So if there are a large population of small canadian planes, its more likley that when a small plane crashes, its canadian. Cessnas are everywhere. You either buy that or those crappy russian 2 seaters.
Here's the story:
http://www.cbc.ca/story/world/national/ ... 50202.html
And i'm willing to bet that the majority of crashes are pilot error or weather, rather than something breaking on the plane.