Year Dollars 1992-01-01 574229384 1997-01-01 1262965092 2002-01-01 1519377707 2003-01-01 1342709031 2004-01-01 1516361461 2005-01-01 1866448897 2006-01-01 2017564787 2007-01-01 2689368151 2008-01-01 2437548748 2009-01-01 2238645290 2010-01-01 2809187246 2011-01-01 2938229183 2012-01-01 3611409506 2013-01-01 3870902558 2014-01-01 3869927259 2015-01-01 3378339549 2016-01-01 3170180967