Year Dollars 1992-01-01 24658017 1997-01-01 21198872 2002-01-01 35279987 2003-01-01 25693410 2004-01-01 40138581 2005-01-01 49231296 2006-01-01 63619049 2007-01-01 74740518 2008-01-01 131495372 2009-01-01 74769145 2010-01-01 43444776 2011-01-01 41824662 2012-01-01 50955168 2013-01-01 51673594 2014-01-01 30858896 2015-01-01 35462474 2016-01-01 37180620