"wild claims..."...????????????????

Iains - did I say my quick post was anything more than an anecdotal recollection
of my own experience 40 years ago...

Yeah.. asking for statistics on that is a bit of a pointless request...
But if you want facts...

The town and country planning students I knew were fairly conservative,
though amiable enough blokes to have a pint and party with..
The crazy violent Law student was a much feared sociopath known as "Jock"...

That'll have to do for your research needs...