Wrong again Raggy, better stick to saying S.F.A.

By the way WTF was the name of this college you went to in Oxford and was that "the" Oxford in England? Whoever sent you there should apply for an effin' refund.

Normal categorisations of personal relationships:

Family (blood relations) - it is usual under normal circumstances that you are acquainted with them and that you are on friendly terms with them, but this may not always be the case.

Friends - outwith the family group and personally selected.

Acquaintances - People you happen to know slightly in passing who are not friends.

Perfect Strangers - You don't know them from Adam.

So like you Jom was wrong with his - "the vasy majority of paeophilic incidents take place within the family" - Jim

The within the family bit excludes friends, excludes acquaintances and excludes perfect strangers so according to the statistics supplied that accounts for 26% of the total - so as Nigel pointed out not a "vasy" majority at all.