Year Dollars 1992-01-01 2043582 1997-01-01 3203248 2002-01-01 2892652 2003-01-01 2430391 2004-01-01 15299898 2005-01-01 5957458 2006-01-01 7608253 2007-01-01 7692238 2008-01-01 7954760 2009-01-01 4337556 2010-01-01 4697384 2011-01-01 3536881 2012-01-01 4449029 2013-01-01 4278813 2014-01-01 4648304 2015-01-01 4536459 2016-01-01 4727364