Year Dollars 1992-01-01 118290340 1997-01-01 184128718 2002-01-01 221026906 2003-01-01 204477286 2004-01-01 225577828 2005-01-01 266152539 2006-01-01 299848054 2007-01-01 353467711 2008-01-01 354835141 2009-01-01 421070733 2010-01-01 534560240 2011-01-01 608595946 2012-01-01 747584216 2013-01-01 841381645 2014-01-01 896987814 2015-01-01 663482887 2016-01-01 534056587