Year Dollars 1992-01-01 2313241 1997-01-01 8446480 2002-01-01 4730462 2003-01-01 3824998 2004-01-01 5892325 2005-01-01 7498065 2006-01-01 8034712 2007-01-01 11954302 2008-01-01 22740019 2009-01-01 9057143 2010-01-01 8664866 2011-01-01 9695952 2012-01-01 9165141 2013-01-01 6937083 2014-01-01 7814265 2016-01-01 6517337