Sales numbers of FJ cruisers each month from 2006 to 2007 in USA/Canada are very well documented, for example, here:
http://en.wikipedia.org/wiki/Toyota_FJ_Cruiser#Sales
I could not find comparable clear numbers for Hummers in the USA (I'm not actually sure those numbers for Sept 2007 of Hummers are worldwide or USA).
Assuming those are USA numbers only, and assuming H3 makes up 74% of total sales (from here
http://en.wikipedia.org/wiki/Hummer_H3, then for September 2007:
H3 : 3760 units and
FJ Cruiser : 4,544 units.