I guess that if you only count the number of toys sold to the dealers, as a producer you can claim anything you want . If you make so darned (OK Joe?) many of the cussed things you can claim you sold more of them than another series. Makes perfect sense to me.
BTW, I have some great great swamp land for sale. Oh yes, I sell more of it than I do Mojave Desert land. Therefore swamp land sells better than desert land. See, simple isn't it?:drama