Year Dollars 1992-01-01 1294341629 1997-01-01 1021555112 2002-01-01 524502878 2003-01-01 493291403 2004-01-01 550491512 2005-01-01 583520351 2006-01-01 1117084671 2007-01-01 1275015746 2008-01-01 2227801471 2009-01-01 1266367864 2010-01-01 2001338204 2011-01-01 3123797408 2012-01-01 3394010169 2013-01-01 2639475305 2014-01-01 2998806821 2015-01-01 2074663670 2016-01-01 2303542593