The entire article can be found here:
http://www.washtimes.com/national/20040227-111236-5901r.htm As concerns the age of the perps, this is the only mention:
"The largest group of abusers — more than 40 percent — were between 30 and 39 years when they first preyed on children."
The rest of the John Jay report should be on the USCCB website, although last time I checked, it was "Temporarily removed for editing." Figures.