I can partly satisfy your request. I've had one significant incident in 1500 days and 15,000 miles of commuting, and it was partly my fault. I was following a car too closely through an intersection on a drizzly day, and to my surprise the car slowed as we were clearing the intersection and then turned right, into a gas station on the far side of the intersection. My brakes were wet and badly adjusted, so I had poor braking power, and I had to dive onto the sidewalk as he cut me off.

Other than that I've had very little to worry about. Now I always check my equipment, give cars lots of clearance, anticipate their unsignalled turns, and ride safely.

This much debated article by Prof Ullrich suggests that cycling improves longevity: the major increase in health more than compensates for any risk of injury.