Cite.
First...do a Google search of "doj study on juvenile sex offenders molestations"
Plenty of hits to look at.
First one for me is listed as www.ncjrs.gov
Its from the Department Of Justice.
Page 1: Juveniles account for more than 1/3 (35.6%) of those known to police to have committed sex offenses against minors.
Page 2: The number of youth coming to the attention of police for sex offenses increases sharply at age 12 and plateaus after age 14.
Page 3: Multiple short- and long-term clinical followup studies of juvenile sex offenders consistently demonstrate that a large majority (about 85–95 percent) of sex-offending youth have no arrests or reports for future sex crimes.