Year Dollars 1992-01-01 46141878 1997-01-01 260335049 2002-01-01 575535532 2003-01-01 512276122 2004-01-01 492389853 2005-01-01 909946255 2006-01-01 1185895482 2007-01-01 1072609336 2008-01-01 1984697819 2009-01-01 1929687262 2010-01-01 2664432523 2011-01-01 2216094138 2012-01-01 1949762163 2013-01-01 1857789508 2014-01-01 2566289557 2015-01-01 2492988664 2016-01-01 2330582889