Year Dollars 1992-01-01 3654208 2002-01-01 4009151 2003-01-01 11561089 2004-01-01 10285738 2005-01-01 9023881 2006-01-01 14437978 2007-01-01 7170554 2008-01-01 25131356 2009-01-01 17374858 2010-01-01 12374761 2011-01-01 4540952 2012-01-01 5617200 2013-01-01 4714501 2014-01-01 7106916 2015-01-01 7290849 2016-01-01 8122414