Other than to satisfy one's curiosity, what is the point of looking at various statistics??
My point here is that, what matters more than statistics is what YOUR guns DO or don't do.
My experience is, good quality semi autos, fed good quality ammo rarely jam, and when they do, it is a completely random occurrence.
To be clear, when you say jam on the 1st or last round, you are talking about a failure to feed, aren't you? Failure to feed, fully close, and lock shut in battery (if you're shooting a locked breech gun).
Jams from failures to extract or eject properly are a different matter, and usually with a different reason.