Why do you do so many hundreds of polls? Are you organizing data for some kind of thesis? Voyeurism? You must get something out of it for doing it so frequently.
Some of this depends on how you define sexual assault. I put "No" but thinking about it some more there are a couple of experiences that are maybe borderline or technically meet the definition. They just don't bother me so I don't even classify them as assault.
I've never experienced it, but have had several gfs that did before meeting me. I know it really messed with them, even years later. I had to be very careful with them.