Dogsbite is a worthless source. You yourself aren't being consistent in your arguments. First it was pit bulls were responsible for 80% of fatalities and now its pits and rottweilers are responsible for 76. Would you like to settle on "big dogs are the ones that normally manage to kill people" and include 2 or 3 more large breeds?

Looking at the link it relies on news paper stories to report that the death happened and then uses the reporters words to correctly identify the breed even though this may actually result in pit bulls being over counted and some fatalities being missed. In fact if you peruse the source its sufficient for an attack to be pit bull related for any given source to refer to the dogs as pit bulls. So if a dozen sources report on the matter and one misidentifies the culprit as a pit bull pit bull kill it is. As an example I found in the first dozen cases a "pit bull kill" wherein nobody saw the person get killed but a neighbor testified that there were problematic dogs in the neighborhood which the neighbor says are pit bulls. I found another which was a literal homicide in which the murderers dog attacked the victim while he was murdering them. It's hard to justify digging through 400 some cases when 1/6th of the first 12 are obviously complete nonsense and the rest are of unknown quality without extensive research not composed of finding newspaper articles and grepping for the word pit in any article about a particular incident.

The citations show the article title but not a url to the actual source making identifying just how bad the source in unnecessarily cumbersome but anyone that spends more than 5 minutes studying it ought to come to the conclusion that dogsbite.org is shockingly not even trying to do an unbiased analysis. It's a hit piece serving the interests of a lobbying group of dog haters who in many cases want to steal people's family pets and kill them to address a problem that kills about the same number of people annually as drowning in bath tubs.

Usually only having one biased source of truth is an indication that you are hanging out with the flat earth society. I invite you to join the rest of us on the round earth.