As I said: IPCC's SRREN gives mortality/GWh statistics, and nuclear is not the safest, by that measure. Data included Three Mile Island and Chernobyl, but not Fukushima.
Actually, I've previously discussed both here:
https://www.reddit.com/r/Futurology/comments/267e5e/what_are...
NB: Conca is a rather partisan pro-nuclear advocate. I've found his credibility wanting and bias quite evident in past.
The IPCC's report: http://srren.ipcc-wg3.de/report/
Risks are in one of the appendixes (I'm not on a device which makes sorting this out trivial at the moment).