My source for the number of breweries is a list I maintain, with all breweries plus opening and closing years, based on Ratebeer, Wikipedia, and personal knowledge. It goes back to 2001, and shows exactly the same trend. 2012 was a record year, with 57 breweries, no less than 16 more than in 2011. This, of course, is a large part of the reason why there were so many new beers in 2012.
(We’ve updated this post and removed a previous inaccurate version).
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