I read the article, and it seemed like the driverless car companies were reporting every accident no matter how minor (as they should). I don't know what it's

I read the article, and it seemed like the driverless car companies were reporting every accident no matter how minor (as they should). I don't know what it's like in the USA but where I live in Australia I know people don't report accidents that need only low costs repairs. It's just not worth the excess insurance payment + the increased insurance premiums. I have no idea what that ratio of unreported accidents are, but my wild guess is it would be over 50%. I can't remember when my wife last had an insurance claim, but the number of chunks has in the side walls of her tyres (and the gouges on the rims) tell their own story. When I was younger, I recall boy racing and hitting some gravel. The car ended up in the bush but miraculously avoided hitting anything too solid. If indeed the driver less cars are reporting every incident and they are using insurance claims or worse police reports to measure human diving performance, it ain't a fair comparison.