https://victimsofcrime.org/child-sexual-abuse-statistics/

Claims: 1 in 5 girls and 1 in 20 boys is a victim of child sexual abuse; Self-report studies show that 20% of adult females and 5-10% of adult males recall a childhood sexual assault or sexual abuse incident; During a one-year period in the U.S., 16% of youth ages 14 to 17 had been sexually victimized; Over the course of their lifetime, 28% of U.S. youth ages 14 to 17 had been sexually victimized; Children are most vulnerable to CSA between the ages of 7 and 13. According to a 2003 National Institute of Justice report, 3 out of 4 adolescents who have been sexually assaulted were victimized by someone they knew well

These numbers are all over the place, but if anywhere near accurate, its a pandemic of damning proportions.