Surprised the heck outta me too... dealer told me and I thought it seemed awful high, but I was able to get a customer service rep to look it up for me. She gave me exact figures as of December 2006 which were the latest available at the time, and said that due to market changes it would be in the neighborhood of the figures quoted above. She was the one that also told me there was no breakdown for Dodge, Chrysler, and Jeep seperately because of the way dealerships were set up and accounted for.
This is why, when I hear dealers who say they have 10 or 20 Challengers allocated I call "shenanigans" (or something like that).