That’s total officers shot, not specifically for raids.
A NYT investigation indicated there were “at least 13” officer deaths tied to forced entry raids from 2010-2016, so around 2/year. It’s unclear how many other fatalities happen in no knock raids. Given that there are only 50-60 total fatalities/year it’s surprising there isn’t comprehensive data for this.
Got any data?
It happens daily? Weekly? Monthly?
What is "regularly"?