Year Dollars 1992-01-01 38111706 1997-01-01 44246226 2002-01-01 80836821 2003-01-01 118544916 2004-01-01 129873133 2005-01-01 206869483 2006-01-01 164331538 2007-01-01 138462496 2008-01-01 148588537 2009-01-01 110525089 2010-01-01 110556295 2011-01-01 153514551 2012-01-01 161988813 2013-01-01 176548302 2014-01-01 196990849 2015-01-01 170320831 2016-01-01 146966045