Year Dollars 2002-01-01 43265 2003-01-01 83812 2004-01-01 18467 2006-01-01 60448 2007-01-01 69981 2009-01-01 122906 2011-01-01 250286 2012-01-01 71633 2013-01-01 50014 2014-01-01 155266 2015-01-01 893351 2016-01-01 431589