Year Dollars 1992-01-01 439981 1997-01-01 988826 2002-01-01 4746897 2004-01-01 3462977 2005-01-01 4102866 2006-01-01 6568373 2007-01-01 5691915 2008-01-01 11403177 2010-01-01 3333808 2011-01-01 5924108 2012-01-01 8159998 2013-01-01 8174810 2014-01-01 8743331 2015-01-01 9456375 2016-01-01 6192261