I have read different studies or polls and the results vary, one may show between 5% and the next 10% of males have or do crossdress. But with the stigma associated to crossdressing even in private questoning I think many males refuse to answer truthfully or find some exemption to qualify their "no" answer.
In short I think if the absolute truth was known nearly every male sometime in their life, for what ever reason has parcialy at least crossdressed. And a lot more do activly CD and hide it, than will ever own-up to it. I have observed the lack of concern by other males in such matters and they just laughed it off into an non-issue. And I dought they would even remember it as such and answer no/never.
I think there are basicly two groups of males, , the one that admit crossdressing and the ones that lie about it. I'm just saying..............