Year Dollars 1997-01-01 2162077 2002-01-01 2330442 2004-01-01 14062389 2005-01-01 4778710 2006-01-01 3905386 2007-01-01 6266837 2008-01-01 8867340 2009-01-01 7384504 2010-01-01 6699321 2012-01-01 9435069 2013-01-01 9067083 2014-01-01 10330387 2015-01-01 12385935 2016-01-01 17413435