Year Dollars 1992-01-01 312106815 1997-01-01 537199859 2002-01-01 392840887 2003-01-01 450136777 2004-01-01 465575770 2005-01-01 587058783 2006-01-01 613587538 2007-01-01 700062457 2008-01-01 659687878 2009-01-01 518361562 2010-01-01 599966321 2011-01-01 609974336 2012-01-01 599580589 2013-01-01 663974924 2014-01-01 832386531 2015-01-01 817692036 2016-01-01 792141923