Year Dollars 1992-01-01 2451621 1997-01-01 807854 2002-01-01 2441739 2003-01-01 903698 2004-01-01 2947476 2005-01-01 1369133 2006-01-01 1530959 2007-01-01 1791662 2008-01-01 3112704 2009-01-01 2549947 2010-01-01 1907780 2011-01-01 3377819 2012-01-01 16450154 2013-01-01 15115383 2014-01-01 3093198 2015-01-01 1783329 2016-01-01 19857899