What you'll find in statistics is that you usually need more than one sample cell (in this case a diocese) to work out your statistical norms.
You know very well your typical pedophile is NOT A LONER.
The RCC is just a larger target. Those women in all those public schools certainly prove the phenomenon is quite widespread although DC did have a "nest" several years back who got caught. Vermont, for example, has several judges who appear to have the job of turning these guys loose and you'll never hear Senator Leahy, for another example, criticizing any of his fellow Democrats who are soft on pedophiles.
How about this? 524 claims settled for $166 million dollars...
A clergy organization representing Jesuit priests in Western states has reached a $166.1 million agreement to settle approximately 524 claims of clergy sex abuse. The settlement is one of the largest in U.S. history relating to the Roman Catholic Church sexual abuse scandal...
Of course that settlement is dwarfed by the 2007 settlement by the Los Angeles archdiocese of $700 million being paid out to hundreds of victims of pederast priests in one diocese in one city.
The RCC is just a larger target.
A target of what?