Just stumbled upon an awesome article on Kanzentai:
So we've often mentioned in passing how much of an international phenomenon DragonBall really is, specifically the original Japanese version, but it's usually been pure speculation based on observations of the general fanbase. Besides seeing how many international visitors this and many other Japanese-oriented DragonBall fansites get, we now have some actual sales numbers from Toei Animation to put along with it. The first quarter of the 2011 fiscal year (FY11) ended on 30 June 2010 and a month later Toei Animation released their fiscal report detailing the top 4 anime properties, both domestically (in Japan) and internationally. For the sake of this update and everyone's sanity, I'll be focusing on the fiscal year sales numbers rather than each individual quarter. To help gauge the significance of these sales I'll be comparing the sales numbers between DragonBall and One Piece between FY04 and FY11.
DragonBall has been doing fairly well in Japan over the past few years, with a nice spike in sales between FY06 and FY08 while the DragonBall Z Individual Discs were being sold. Following FY08, sales began to drop off slightly, and even with DragonBall Kai premiering at the very beginning of FY10, the sales in Japan have continued to drop. Conversely, after slightly dropping off between FY05 and FY09, One Piece sales have rapidly been rising. In fact, One Piece made ¥669 million for the total of FY10, but has already out sold that fiscal year in just one quarter of this fiscal year, most likely due to the series film, "Strong World". By the 2nd quarter of FY11, One Piece could conceivably make over ¥1 billion in total net sales for the fiscal year, a feat last accomplished by DragonBall!
With DragonBall on the decline after peaking at ¥1.23 billion in FY07 and One Piece possibly heading toward ¥1 trillion in FY11, it seems One Piece has completely taken over the sales market in Japan. It seems all too clear now why Fuji TV decided to combine DragonBall Kai and One Piece in an anime block. But does DragonBall still hold up internationally these days, even though it's now not the largest bread winner in Japan?
With no surprise, DragonBall is still the best selling anime series internationally, by far and away surpassing One Piece and almost every other anime series. In fact, the profit share for most anime series between domestic and overseas sales is 80:20, whereas DragonBall itself is approximately 30:70, meaning on average DragonBall has made 70% of all its net profit over the last seven fiscal years from international sales. In the last fiscal year alone, DragonBall netted ¥1.62 billion internationally, but only grabbed ¥598 million domestically in Japan. I know everyone loves looking at the graphs and numbers, but what's the real point to all this? Well, simply, the funding of DragonBall Kai.
http://kanzentai.com/index.php?subaction=showcomments&id=1281459822&archive=&start_from=&ucat=4&
So, to sum it up, One Piece RAN SHIT in Japan during FY2010, and is off to a great start in FY2011, despite Dragon Ball Kai. I think we have Strong World and the popularity of Marineford to thank for that.
Overseas, however… yikes. It's expected, but the gap is massive. I wonder what a comparison with Naruto would look like, that would probably be much closer =(