Wii is on track to surpass the Game Cube this month

[TWRoO]

N64 lifetime shipments----- 32.93 million (This will be pretty much exactly the sales)

GC lifetime shipments ----- 21.59 million (as of March 07, I don't think Nintendo shipped any more since then though)

GC total sale according to VGC 21.51 million (so rounding to 22 million is a bit of a stretch Zucas)