Year Dollars 1992-01-01 12453062 1997-01-01 84583853 2002-01-01 54973400 2003-01-01 88646512 2004-01-01 134536100 2005-01-01 95009015 2006-01-01 90967881 2007-01-01 214044721 2008-01-01 343522468 2009-01-01 154664573 2010-01-01 343736002 2011-01-01 514841828 2012-01-01 620485848 2013-01-01 592114562 2014-01-01 488080962 2015-01-01 245772808 2016-01-01 245522909