Year Dollars 1992-01-01 25882447 1997-01-01 42670884 2002-01-01 45454969 2003-01-01 41723116 2004-01-01 44041623 2005-01-01 61826804 2006-01-01 83566630 2007-01-01 54633104 2008-01-01 57606106 2009-01-01 43959015 2010-01-01 47336261 2011-01-01 68127089 2012-01-01 61840493 2013-01-01 51874747 2014-01-01 41535575 2015-01-01 42788756 2016-01-01 43217510