It occurs to me that because the deaths caused by autonomous vehicles may not follow the same distribution across types of deaths, it might make more sense to compare total deaths per million miles between human and autonomous drivers.
Which seems unbelievably low. I'm getting these figures from this Wikipedia graph[1]
[0] https://en.wikipedia.org/wiki/Transportation_safety_in_the_U... [1] https://en.wikipedia.org/wiki/File:US_traffic_deaths_per_VMT...