Year Dollars 1992-01-01 101945 1997-01-01 6490038 2002-01-01 4339812 2003-01-01 6989978 2004-01-01 11229050 2005-01-01 14318482 2006-01-01 5249208 2007-01-01 10691627 2008-01-01 14978090 2009-01-01 12277989 2010-01-01 17200398 2011-01-01 17958014 2012-01-01 30558845 2013-01-01 39848291 2014-01-01 25107799 2015-01-01 40013258 2016-01-01 52660257