Ok, I don't mean to sound like your high school sex ed teacher or anything, and I'm not doubting the legitimacy of that particular clinic, but I work in the health care field and I know there are definitely more risks than listed. I have seen 'virgins' (m/f) with some nasty STI's.
With DATY you can catch herpes quite easily. Even if the virus is dormant (there's not sore visible) it is the most contagious 24 hours prior to signs of sores and during. The vagina has such a think skin covering, that you can pass anything from Chlamydia, Gonorrhea, HPV warts....
Anyway, my point is, we should all watch where we dine. As for the other 'low risk' activities.... Anal sex is especially risky because of the small tears that can occur in the anus. wrap it up, fellas. This chart seems to play down a lot of risks, which is what we all want to hear, but it only takes once to get an ugly virus