Year Dollars 1992-01-01 6230363 1997-01-01 7375787 2002-01-01 6878724 2003-01-01 7608108 2004-01-01 26818268 2005-01-01 24230931 2006-01-01 31705874 2008-01-01 67225707 2009-01-01 58546854 2010-01-01 186729100 2011-01-01 227377209 2012-01-01 172364987 2013-01-01 168416181 2014-01-01 205380092 2015-01-01 171345779 2016-01-01 82850360