[texhax] emperical surveys about the propagation of LaTeX?

[Jan Leusmann]

Dear Sir or Madam,
Me and a friend of mine are currently working on a seminar paper about LaTeX 
and we are still looking for a reliable source (or a source anyway) about 
the propagation of LateX amongst students or scientists. Unfortunately, the 
"DANTE" organisation did not response on our e-mail.
Could you possibly give us a URL to a emperical survey or some reliable 
statistics? Potential sources could also cover American countries and not 
necessarily European ones.
Yours,
Jan Leusmann and Christoph Seelus