If you haven’t seen this video about globalization and a changing market, you should:
It’s an update from a presentation by Karl Fisch that he gave to his staff at Arapahoe High School. His informal citations for the stats are here. The update was done by Scott Mcleod, a professor at the University of Minnesota. I really relate to how quickly tech information changes during the course of a college study. My first two years we were doing C/C++ (and I used to read binary) but then the required languages switched because web development was really taking off.