Year Dollars 1992-01-01 17304438 1997-01-01 18473840 2002-01-01 18110132 2003-01-01 31913633 2004-01-01 36561051 2005-01-01 35406288 2006-01-01 27906087 2007-01-01 67021137 2008-01-01 51749028 2009-01-01 47120102 2010-01-01 87301262 2011-01-01 43266968 2012-01-01 49586991 2013-01-01 51868175 2014-01-01 40858734 2015-01-01 51205829 2016-01-01 32817782