Couldn't say about totals with any certainty, but I can vouch for two.
Woman swerved across the center line of a two laner to miss a deer, and went through the guard rail, and over the bank, to the tune of 100'. The crash threw both of her unrestrained kids out, then her minivan rolled over them, killing both at the scene. She spent several days in our ICU.
The good news was that the innocent driver coming around the blind curve towards her managed to both miss her & stay on the road, then call it in.
To be fair, hitting a deer isn’t exactly safe either. It’s sad if you hit a cat or a squirrel, but they don’t have an ugly tendency to come up over the hood with mass and sharp hooves to come through your windshield either.
I’d never intentionally hit any animal, but given the choice of a deer or a guardrail, the guardrail chewing up my passenger side might well be safer.
I hit a deer about three weeks ago. I was on a four-lane divided highway just after dark. It came seemingly out of nowhere, and I could not have swerved to miss it—there was another car on my right and a concrete barrier on my left. I braked hard, hit it anyway, and launched it over the barrier onto the other side of the highway. My beloved Honda Civic was totaled, but I walked away without a scratch.