Every single day, every single person eats.
Not every person has a PBT nor do they see 1 even in a great while.
Hence the big difference in mere NUMBERS of incidents.
Well if we’re going to get all nitpicky about statistical relevancy, I would suggest that some of those ‘pitbulls’ identified by dogsbite.org are probably boxers, labradors, bull dogs and mixes, shrinking the probability of being attacked by a pitt/rottie even further... :-)