Year Dollars 1992-01-01 130297087 1997-01-01 138987861 2002-01-01 218160893 2003-01-01 249663976 2004-01-01 462933792 2005-01-01 605805138 2006-01-01 667811456 2007-01-01 564165746 2008-01-01 738530493 2009-01-01 836605084 2010-01-01 2123168537 2011-01-01 2977478850 2012-01-01 3147758580 2013-01-01 4849050447 2014-01-01 4216564721 2015-01-01 4384890998 2016-01-01 6230912571