Year Dollars 1992-01-01 869913 1997-01-01 619519 2002-01-01 535670 2003-01-01 914742 2004-01-01 4352778 2005-01-01 4080851 2006-01-01 8303580 2007-01-01 4405727 2008-01-01 9464217 2009-01-01 7313868 2010-01-01 9651894 2011-01-01 14399270 2012-01-01 12838896 2013-01-01 22562975 2014-01-01 24482307 2015-01-01 11484886 2016-01-01 14975871