About Doujinshi
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Annual research by the research agency Media Create.
Indicated that of the $1.65 billion of the Otaku industry in 2007
Doujin sales made up 48% ($792 million).
25% of Japanese men between the ages of 30-34 are still virgins.
Population and Social Security Research found that almost one in four Japanese men aged 30 to 34 is still a virgin.
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