For July 4th week end, the missus and I spent the Saturday at a nudist resort. It's hard to tell how many people where there; the resort was completely packed.
It's a "nude mandatory" resort, so everyone there was naked. My wife tossed her clothes in the trunk after we checked in; and stayed naked all day. So everyone there, at some point or another, saw her naked because we were hanging out "all over the place."
As I mentioned in another post, due to our active involvement in social nudism, it is nearly impossible at this point to even guess how many guys have seen my wife naked. We are planning on bringing some friends with us on our next visit though; so it will be interesting to see how everyone reacts to seeing each other naked for the first time. And how different it will be for my wife to be naked in front of friends, rather than complete strangers. I'm guessing she will actually get a kick out of it.