The August 2015 survey period covers Thu. 7/16/15 - Wed. 8/12/15 -
publicly released data for subscribing stations age 6+ overall:

Minneapolis-St. Paul: http://ratings.radio-online.com/cgi-bin/rol.exe/arb027

Next report will be for the September 2015 survey period covering Thu. 8/13/15 - Wed. 9/9/15.
The data release date will be Wed. 9/30/2015 (delayed one day due to Yom Kippur on 9/22-23/2015).