Note that a riot is a really loosely defined term, literally any civil unrest or any gathering which the authorities don’t agree with can be labelled as “a riot”.

The actual charges given to people after a “riot” are usually unrelated (jaywalking, illegal lodging, etc.) and are mostly dropped before this goes through the courts.

I haven’t looked at the figures but I would be very surprised to find the percentage of protestors arrested for the Black Lives Matter cause that are guilty of rioting is more then a single percent. To reword: I claim (though I don’t know the figure) that less then 1% of people arrested during a “riot” are found guilty of rioting.