Year Dollars 1992-01-01 5912210 1997-01-01 6341427 2002-01-01 4122186 2003-01-01 4683606 2004-01-01 7704286 2005-01-01 9393635 2006-01-01 9204321 2007-01-01 5721599 2008-01-01 5096584 2009-01-01 3490596 2010-01-01 4912642 2011-01-01 9282332 2012-01-01 7029785 2013-01-01 6091330 2014-01-01 8118622 2015-01-01 6929566 2016-01-01 14057044