Now it's a long time since I left, but I remember that even in university towns there were very few JW's with higher education. I remember one who got PhD, and there was also a dentist.
A lot of the JW's were cleaners, but they seemed to avoid working at the university even as cleaners! Maybe the atmospere at the university was dangerous?! :-)
This was in the 1980's. Nowdays the JW's in Sweden are losing very many of the young ones. I should guess that some 70-80% of the young ones leave the organisation.
I remember that in the 1980's there used to be some 800-1000 people baptized every year in Sweden. Last year it was only 312.