Japanese publisher Shueisha published the top 10 manga titles from its Weekly Shonen Jump magazine by volume sales, as of February of 2012:

Shueisha's advertising media guide also revealed the results of reader surveys for its various magazines, including which game systems their readers play, how much and how their readers use their New Year's gift money, where their readers are from, and the age ranges of those readers.

Weekly Shonen Jump began its run in 1968. Viz Media began releasing an American English-language version of Shonen Jump in 2002, and ended its run in print earlier this year. Shonen Jump Alpha , a digital English version of the magazine, debuted in January.

[Via Yaraon!]

Update: The lowest price of a One Piece volume is 410 yen (about US$5.10, tax included). As of February of 2012, the volumes of One Piece have brought in at least 112,126,800,000 yen (US$1,404,220,000) in revenue.