The majority of child sexual assault victims are girls.
The vast majority of sexual assault perpetrators are male.
While there may be (and there is) and argument made about disproportionality - the numbers simply don't add up to the majority of pedophiles/pederasts being gay.
The vast majority of sexual assault convictions are male.
Thus you get wildly different graphs if you chart your information strictly from court records or a head count of convicted prisoners in the justice system than what you see from counseling and therapy researchers. Female predators may approach thirty percent. As with male predators, they go after both sexes in their victim selection.