I agree. I once read an article on GSD bites and it did defend them by stating the reason why bites have went up is the popularity of the breed has went up. More popularity = more GSDs and more less quality GSDs bred by BYBs and puppy mills to make money.I think it also has a lot to do with the popularity of the breed a the time.
every where you turn now someone is walking around with some sort of a bully dog. and people breed them to just make a quick buck. so the population is growing rapidly. more dogs = more bites.
at times when dobies or rotties were "cool" to own statistics might have been different.