Year Dollars 1992-01-01 11563394 2002-01-01 5414995 2003-01-01 2677263 2004-01-01 5498391 2005-01-01 6704221 2006-01-01 4370826 2007-01-01 6444568 2008-01-01 12944908 2009-01-01 5395372 2010-01-01 6558209 2011-01-01 6949044 2012-01-01 2183904 2013-01-01 1057113 2014-01-01 1383734 2015-01-01 357267 2016-01-01 1383463