Multiple university professors / researchers state so in various academic papers, as well as a study by the John Jay College of Criminal Justice, in the U.S. And it has even been published in mainstream sources such as these ones (and there are more if you look online).
Six important points you don't hear about regarding clergy sexual abuse in the Catholic Church | Psychology Today
Five myths about the Catholic sexual abuse scandal
A note on the "John Jay Report" is that identifies abuse claims from victims and not "pedophilia". The report indicates that approximately 4% of the clergy have had accusations of sexual abuse against them. Pedophilia has been estimated at around 5% in the general population (How many men are paedophiles? - BBC News but this was defined as "thoughts and fantasies about children"... So the value corresponding for full fledged sexual orientation, never mind for people who commit acts for pedophilia is probably much, much less. Now of course, as the article points out, not all sexual attraction against minors is technically "pedophilia", so this complicates things a little bit further.