Year Dollars 1992-01-01 71507986 1997-01-01 24728600 2002-01-01 54646694 2003-01-01 45369251 2004-01-01 41525738 2005-01-01 61885750 2006-01-01 55481808 2007-01-01 42742197 2008-01-01 53380079 2009-01-01 45155896 2010-01-01 39016045 2011-01-01 53318056 2012-01-01 41159519 2013-01-01 42010845 2014-01-01 59827636 2015-01-01 34464765 2016-01-01 33949964