Year Dollars 1992-01-01 244023673 1997-01-01 259328885 2002-01-01 291898306 2003-01-01 295564262 2004-01-01 316239628 2005-01-01 287080689 2006-01-01 365886852 2007-01-01 401699461 2008-01-01 374342898 2009-01-01 350904143 2010-01-01 359060822 2011-01-01 508056831 2012-01-01 428245645 2013-01-01 366972263 2014-01-01 377485741 2015-01-01 348603070 2016-01-01 354770230