I don't know off-hand where you could find the "real stats". However, I can tell you an easy way to spot stats that aren't reliable. Simply look under 2020 data for left-wing violence and see what the total is. The riots after George Floyd's death were clearly aligned with the left, resulted in riots in 200+ cities, left billions in damage, and dozens dead. If you see only a few dozen left-wing "incidents" for that year, know that the data you are looking at is dismissing left-wing violence and is therefore not very reliable.