You can learn a lot looking at real-time pay trends.  As we closed out 2019, average pay for advertised jobs in the US rose 3.1% compared to 12 months prior.  But, stats look very different across industries, and are indicative of an overall increase in demand for higher paying positions.  See the attached link for more detail.

 

https://finance.yahoo.com/news/outlook-for-new-hire-pay-shows-31-increase-entering-2020-indicates-increased-hiring-for-higher-paying-positions-223233472.html