Year Dollars 1992-01-01 754762 1997-01-01 750586 2002-01-01 798226 2003-01-01 1376068 2004-01-01 5610223 2005-01-01 8227762 2006-01-01 5799699 2007-01-01 10069462 2008-01-01 24847839 2009-01-01 39683102 2010-01-01 20509489 2011-01-01 13848513 2012-01-01 18210024 2013-01-01 38514203 2014-01-01 35059618 2015-01-01 24663568 2016-01-01 21119245