Year Dollars 1992-01-01 85162039 1997-01-01 263173030 2002-01-01 229266529 2003-01-01 226218026 2004-01-01 318094127 2005-01-01 378221436 2006-01-01 482213639 2007-01-01 494559131 2008-01-01 756889412 2009-01-01 494363547 2010-01-01 501662744 2011-01-01 606041067 2012-01-01 797083289 2013-01-01 815286161 2014-01-01 691527101 2015-01-01 802761155 2016-01-01 628869883