Year Dollars 1997-01-01 343037 2004-01-01 5370071 2005-01-01 8636275 2006-01-01 7518411 2007-01-01 3736083 2008-01-01 39146697 2010-01-01 1254710 2013-01-01 14051865 2014-01-01 43856156 2015-01-01 19257955 2016-01-01 15427212