GM DA report changes?

I am noticing some strange changes in the GM Dealer/Peer Analysis for June and July. I very well could have missed something, so did anyone hear about any changes that GM was making to the calculation??
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** Rob, Editor Dealersedge/WD&S **
Help is only a message post away!
robc@dealersedge.com
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** Rob, Editor Dealersedge/WD&S **
Help is only a message post away!
robc@dealersedge.com