...and simulator manufacturer ? Boeing and Airbus also have forecasts out.
I'd like to see a study from a 100% objective source (no financial interest in seeing the data show one conclusion over another) dealing with this outside the USA. That data may be hard to get from so many sources.
Mike McGee's study was just for the USA but was a very good one:
http://www.rand.org/pubs/rgs_dissertations/RGSD351.html
I'm just a cranky skeptic. :-)))