Year Dollars 1992-01-01 245064395 1997-01-01 563948680 2002-01-01 326387257 2003-01-01 363019501 2004-01-01 447918086 2005-01-01 506728392 2006-01-01 500707564 2007-01-01 566941903 2008-01-01 563178988 2009-01-01 460458706 2010-01-01 622209447 2011-01-01 717907618 2012-01-01 830067236 2013-01-01 1005050985 2014-01-01 917042218 2015-01-01 1015915899 2016-01-01 845502578