Podcasting Demographics by Age

The Pew Research Center State of the News Media 2015  report contains the news that podcasting is on an upward trend:

The increased reach and upward trend line of podcast consumption is evident in every available measure – the percentage of Americans who are listening to podcasts, the level of public awareness, and how many podcasts are being hosted and downloaded.

I wanted to narrow in closer on the age demographic breakdown of who is listening to podcasts than that provided by Pew, which is all Americans age 12 and older.  Fortunately, Edison Research has a better age breakdown, although the research is a little older (from 2012).