Earlier quoted context omitted.
It's very clear where it's going. The number of administrative staff at colleges and universities have skyrocketed in the past 30 years. Just like in the corporate world, corruption and the proliferation of unnecessary management have sucked revenue to the top. http://www.salon.com/2014/06/08/colleges_are_full_of_it_behi...
I took a look at CMU's financials and it definitely looks like the money is going towards salaries. They don't offer a breakdown between the different kinds of salaries, naturally. Does anyone know of a representative dataset (by "representative" I mean "not the UC system, not an ivy with >$10b endowment, etc") that would include this information? https://www.cmu.edu/finance/reporting-and-incoming-funds/fin...
All government employee salaries in the state of Texas are public info [0], I used to check out how much my professors made. And how much my dad made. You can see salaries by employer as well. I'm not sure where to find historical salary data but it has to exist somewhere.
[0] http://www.texastribune.org/library/data/government-employee...