all i know is Pokemon XY is probably heavily undertracked (or at least a couple thousand!)
Month VGC NPD (digital included)
Oct 2.67mil 1.7mil (only overtracked month)
Nov 460k 750k *4weeks
Dec 547k 720k
Jan 97k 125k
Feb 71k 130k *4weeks
Mar 91k ???k
Im going to guess undertracked by at LEAST 44k (Watch me be right :p) maybe even undertracked by 60k-70k
(End of Feb, VGC 3.27mil...NPD 3.6mil+)