http://newgon77idcem62vqlfge3jkidjenvf6afhxwr2napk4kpp2labjbdid.onion/wiki/index.php?title=Research:_Prevalence_of_Harm_and_Negative_Outcomes
Participants were asked about CSA occurring before 16 with someone at least 5 years older. In the entire sample, 7.7% of participants [i.e. 185 people] had "consensual" CSA — the authors' term — whereas 5.3% had nonconsenting CSA. Thus, 59% of CSA was consenting." (p. 744).