Good point... a fair amount of that 2009 figure are probably sales of 2010s.2010 Challenger production numbers will be way higher than 36,791. This number represents sales from Dec 2009 to Dec 2010. 2010 Challenger production started in July 2009 and continue up until Nov 2010.
As stated in the post above this one... good luck with that.
Those 2009 numbers are not accurate. They only go through the shutdown for Bankruptcy.