Overall age 6+ publicly released data for Nielsen Audio subscribing stations for the September 2013 survey period covering Thu. 8/15/13-Wed. 9/11/13.
Next survey period will be for October 2013 (covering Thu. 9/12/13-Wed. 10/9/13) with the data release date being Mon. 10/28/13.
AllAccess PPM Ratings Analysis with demo breakouts for September 2013 (scroll down for Chicago):