The more I read, the more I feel I must be leading some sort of charmed life!
In 30+ years, I remember coming off the bike three times, all of my own fault: one riding into the back of a car as we pulled away from traffic lights (I hadn't realised before then that I accelerate faster than some cars, at least at first) where I did at least stay on my feet; one when I was swerving left-right to clean mud from the tyres (oh vanity), left the roadway to the left and then fell back onto it (landed on my side); and one on ice on a corner at the end of last year (landed on my side). There's another time when I rode into a ditch, but I'd class that as learning to ride because it was my first try at using downtube shifters.
I've also been crashed into by other bikes various times but I don't remember any of them knocking me off. I've had various near-misses with motor vehicles, including being clipped by a car wing mirror, leaning on the side of a white van that pulled out while I was using a mini-roundabout and deliberately riding up the verge to avoid a bad overtaker oncoming, but I don't think I've yet been knocked off by one.
I've ridden quite a lot. Not great distances often (it's only the last few years that I've done 30-100 mile day trips) but most days to school and then university and work and now every day for my health. My riding has probably been a little atypical with a lot of the urban bits on cycleways around Milton Keynes, Norwich and King's Lynn - and I often ride cycleways unless they're utter rubbish - but I also spent a few years near Weston-super-Mare (which doesn't have many cycleways and even fewer decent ones) and I've ridden in various cities, most often Cambridge and London... I'm no speed demon, but I think I hold a steady 30kph in typical good conditions (rare in the cities). There are always claims that cycleways are more dangerous how we build them in this country because of the increased number and lower priority of junctions, so surely I should have crashed more than most? Could it be partly that I'm a better judge of cycleway dangers than many because I've been riding them since I was young and some of MK's are pretty awful?
Anyway, I'm now not so sure about dismissing the claim that most cyclists have been knocked down by cars. The results were looking pretty tight this morning