Year Dollars 1992-01-01 36347720 1997-01-01 101176013 2002-01-01 4681627 2003-01-01 8560633 2004-01-01 10258920 2005-01-01 12089915 2006-01-01 16611201 2007-01-01 36072126 2008-01-01 47422172 2009-01-01 62905751 2010-01-01 71644244 2011-01-01 52841290 2012-01-01 73739908 2013-01-01 86387155 2014-01-01 83865124 2015-01-01 67461994 2016-01-01 34270789