Year Dollars 1992-01-01 59178137 1997-01-01 116371838 2002-01-01 65753932 2003-01-01 105254450 2004-01-01 136802874 2005-01-01 146241051 2006-01-01 142085044 2007-01-01 184535709 2008-01-01 257883662 2009-01-01 361723558 2010-01-01 571462840 2011-01-01 415199318 2012-01-01 449606600 2013-01-01 770364572 2014-01-01 747979205 2015-01-01 648664432 2016-01-01 832845775