Year Dollars 1992-01-01 1865681 1997-01-01 785264 2002-01-01 1133979 2003-01-01 1491031 2004-01-01 2422284 2005-01-01 3981241 2006-01-01 2976881 2007-01-01 3359458 2008-01-01 5978287 2009-01-01 5936526 2010-01-01 4547900 2011-01-01 3039562 2012-01-01 2716313 2013-01-01 2694230 2014-01-01 2938194 2015-01-01 1542826 2016-01-01 1684937