https://www.aauw.org/app/uploads/2020/03/Crossing-the-Line-S...
The 1-in-10 number is self-reported harassment which is different from teacher-on-student abuse but I don’t really care about the distinction. Your 1-in-20 number is a different metric entirely, by the way (as abusers are not one-to-one with abused). Again, I don’t really care about these wrinkles.
Anyway, AAUW’s data doesn’t distinguish between reports from public and public charter, so you can’t use this data to draw conclusions about differences between public and religious schools.
Furthermore, and this is the most important part, their main recommendation to reduce the incidence of abuse and discrimination in all schools (i.e., one of the things I actually want to minimize) is to promote more adherence to Title IX protections.
Private schools have no legal obligation to provide any Title IX protections, and indeed some religious schools, by their very doctrine, cannot.
Next time, if you’re going to demand statistics that don’t exist (as private schools have no reporting requirements and the AAUW report demonstrates that many institutions obviously underreport) please provide better links, thanks.