Just goes to show you how fansubs != ratings in japan. The highest rated non 1000+ episode show, Gegege no kitarou, got 3 times the audience of almost any other anime, and it's not even been fansubbed
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Oh, and of course, Yes! Pretty Cure 5 isn't far behind in the ratings, and at least that's fansubbed (although with 1/10th the downloads of anything else this season).