According to the Eagles, they were the third most popular team in the NPB, behind the Yomiuri Giants (16M fans) and Hanshin Tigers (12M), with 9M fans nationwide.
At least that's what they said during their final meeting of the year on Wednesday.
I'm not entirely sure how they arrived at that number, but they did apparently hire a company to do the research.
I'd be interested in seeing where the other clubs rank. I'd also be interested in knowing how the company that did the research arrived at the numbers. I'm not at all surprised at seeing the Giants and the Tigers at the top, but the Eagles third?