Year Dollars 2004-01-01 1938412 2005-01-01 2231933 2006-01-01 5161117 2007-01-01 4548295 2008-01-01 6144350 2009-01-01 3967972 2010-01-01 3603773 2011-01-01 6882684 2012-01-01 6085966 2013-01-01 8531101 2014-01-01 5100966 2015-01-01 4611795 2016-01-01 5314314