Year Dollars 1992-01-01 615403062 1997-01-01 831240327 2002-01-01 1173409140 2003-01-01 1183222392 2004-01-01 1108820200 2005-01-01 1096880546 2006-01-01 1147532091 2007-01-01 1336094778 2008-01-01 1379371894 2009-01-01 1054004624 2010-01-01 1219890088 2011-01-01 1455391596 2012-01-01 1404004671 2013-01-01 1556382354 2014-01-01 1741616203 2015-01-01 1684595255 2016-01-01 1832615787