Year Dollars 1992-01-01 200649308 1997-01-01 300022207 2002-01-01 372512212 2003-01-01 430402780 2004-01-01 470961757 2005-01-01 472214296 2006-01-01 608092794 2007-01-01 692617485 2008-01-01 690214332 2009-01-01 457992445 2010-01-01 501328492 2011-01-01 512139761 2012-01-01 463959996 2013-01-01 455876120 2014-01-01 555197529 2015-01-01 536152293 2016-01-01 593436518