Hm, Berlin has statistics for dog bites and the Pitbull hasn’t bitten the most people. Link: https://www.berlin.de/sen/verbraucherschutz/aufgaben/hundehaltung/hundebiss-statistik-1485418.php

Edit: Also found the Austrian statistics. The Pitbull is still not the dog with the most bites. Link (there is a csv download on the site): https://www.data.gv.at/katalog/dataset/bissstatistik#resources