We have had a couple of threads on this, but Jim Carroll has hijacked numerous unrelated threads to dredge it up over and over.
It has made him and me very unpopular.

In future I will only reply to him on this thread so no more threads will be spoiled.

On the original thread I found myself defending the proposition that one demographic group was over-represented.
In the end only Jim challenged that fact and I withdrew.
For his benefit, here are a coulple of people who agree with me.