Year Dollars 1992-01-01 178152739 1997-01-01 365095580 2002-01-01 487588242 2003-01-01 654715708 2004-01-01 701931399 2005-01-01 727603740 2006-01-01 745294062 2007-01-01 932928554 2008-01-01 1108310659 2009-01-01 861500971 2010-01-01 1221626120 2011-01-01 1380972341 2012-01-01 1552252756 2013-01-01 1797192171 2014-01-01 2229669692 2015-01-01 2567421783 2016-01-01 2417597562