I have a hard time believing PBT-types are more populous (.033) than Rottweilers (.003??? serious?) and spitz-types (.02). Even though it is a type covering many breeds and not just 1.
You might need adjustment to that. Of course, having PBTs and Presas up there in the list in not shocking, even if they don’t make #1.
The stats came from www.dogsbite.org. I'm not going to challenge them because I don't know. I do know that the CDC keeps bite statistics, but doesn't make any representation as to the numbers of breeds in the pet population. If you can find the stats for breed distribution in the population of US pets you can merge it with the CDC data and voila you can work out your own table. This is getting too much like work for me to want to do that.