Audiences. https://en.m.wikipedia.org/wiki/List_of_most-listened-to_radio_programs. You’ll have to scroll to find it.
https://www.npr.org/about-npr/520273005/npr-ratings-at-all-time-high
NPR’s flagship programs, All Things Considered and Morning Edition, reached their largest weekly audience ever, at 14.4 million and 14.65 million listeners, respectively – continuing to be two of the largest news radio programs in the country, and larger than many well-known television news programs.
Hannity has over 15 million and Limbaugh over 20 million,