Year Dollars 1992-01-01 308508 1997-01-01 691132 2002-01-01 1257728 2003-01-01 2652594 2004-01-01 2734004 2005-01-01 3616002 2006-01-01 4462315 2007-01-01 3739204 2008-01-01 3782421 2009-01-01 3184285 2010-01-01 3028645 2011-01-01 4784624 2012-01-01 5119496 2013-01-01 4618641 2014-01-01 3972267 2015-01-01 7041741 2016-01-01 3997895