What is the demographic of repeat 911 callers?

Can anyone find a study of demographics related to all 911 callers? I'm trying to see if the caller demographic matches population distribution?

I'm pretty sure the data should be there but I'm having trouble finding it. I can only find something from like 20 years ago related to domestic violence 911 calls.

LINK


Seems there's an issue with certain people being targeted by police, but as far as I'm aware cops sit around eating donuts and don't do s***.

However, cops are forced to respond to 911 calls. So I want to see the systemic racism in 911 calls. I am expecting to see 99% white callers, but in the DV study of repeat 911 calls, it looks like it's 91% African American calling on 91% African American abusers.