Year Dollars 1992-01-01 52816 1997-01-01 38960 2002-01-01 762585 2003-01-01 2001281 2004-01-01 2224099 2005-01-01 1212913 2006-01-01 634067 2007-01-01 340434 2008-01-01 667463 2009-01-01 1298777 2010-01-01 741813 2011-01-01 4723398 2012-01-01 557040 2013-01-01 3074311 2014-01-01 575224 2015-01-01 463915 2016-01-01 221450