Well, I don't have the real numbers, but I recently talked about this issue with the CX race promoter here in Michigan (Tailwind ent.) and he said that attendance is up 10% across every class for his series!
Kansas and Western Missouri are way up! If I remember correctly, we went from 90 racers to 199 plus at some events. CX has just gone nuts in this area. Nationals had something to do with it but it is the promoters in this area who should get all the credit. Check out the pictures from this weekend at www.flickr.com/lanternerouge/