The New York Times Manga Best Sellers of 2009

The first year of the Best Seller list saw 55 manga titles and one light novel title make their appearances. Of these, eight titles reached the top of the weekly list (in order of number of weeks at the top of the list, from highest to lowest): Naruto, 18 weeks; Bleach, 9 weeks; Vampire Knight, 7 weeks; Fruits Basket, 4 weeks; Negima! , 3 weeks; Chibi Vampire, 1 week; Fullmetal Alchemist, 1 week; and Warriors: Ravenpaw's Path, 1 week.

Source: Wikipedia — The New York Times Manga Best Sellers of 2009 (CC BY-SA 4.0)