The US Crisis Project, an effort by the Armed Conflict Location & Event Data Project (ACLED) and the Bridging Divides Initiative (BDI) at Princeton University, exists solely to collect and analyze data on protests and political violence in the US.
It looked at data from all 50 states, and found that 93% of racial justice protests after George Floyd was murdered in broad daylight and on camera by white police officer Derek Chauvin in Minneapolis, were peaceful and nondestructive.