Graph from Ron Pattinson's "Scottish Beer Exports" post, Oct. 11, 2011

I graphed the data from today's Shut Up About Barclay Perkins article (written by Ron Pattinson) and find it very interesting that after a steady climb, beer fell off sharply (1811-1812) and Porter following closely behind (1813-1814). After that, ale makes up nearly the entirety of exports peaking in 1818 then beginning to fall off shortly thereafter: