Year Dollars 1992-01-01 19761779 1997-01-01 14348735 2002-01-01 52407853 2003-01-01 44489030 2004-01-01 49667518 2005-01-01 55640034 2006-01-01 71437454 2007-01-01 124602529 2008-01-01 162015571 2009-01-01 195036611 2010-01-01 147295341 2011-01-01 133923127 2012-01-01 164789181 2013-01-01 194443712 2014-01-01 188037384 2015-01-01 192554683 2016-01-01 158611744