Sources: (On Air) ACT 1 based on Nielsen Audio Nationwide, Spring 2017, All Programming (incl. newscasts), Persons 12+ © 2017 The Nielsen Company. May not be quoted or reproduced without the prior written permission of Nielsen. (Online and apps) Google Analytics, 3-month average, April-June 2017. (Podcasts) Podtrac, September 2017. (Discuss content) NPR Impact Study, NPR Listens, January 2017. Refers to weekly listeners.