Year Dollars 1992-01-01 22262669 1997-01-01 52583063 2002-01-01 89101918 2003-01-01 96188566 2004-01-01 110880211 2005-01-01 141147974 2006-01-01 208083514 2007-01-01 175500209 2008-01-01 202330759 2009-01-01 120591362 2010-01-01 161360928 2011-01-01 175425982 2012-01-01 153609152 2013-01-01 168208084 2014-01-01 192382383 2015-01-01 168905866 2016-01-01 151689458