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.

https://www.nytimes.com/interactive/2017/03/18/us/forced-ent...

There are an estimated 20k-80k no-knock warrants in the US every year for context.