I know, I'm really late on this. ,____, I got really busy right around the time GAGAGA was released and I just couldn't seem to find time to update.
Anyway, most of you probably know, but it managed to come in 3rd on the weekly chart, selling 63,627 copies. Since then it's hit 23rd and 37th on the weekly chart(s), and has sold 71,714 copies total. Not too shabby, eh? :D