I think it WAS 1% or 2%, at the most. But somehow lately, without normal reproduction, they have been increasing their numbers! Perhaps by recruitment? You tell me.
Certainly it seems like there are more of them now because the stigma has been reduced (though it still exists)—in some circles, it is even hip to be gay. As a hetero male, it is difficult for me to believe that another hetero male could be “talked into” going gay. But its apparently possible to talk people into anything.