Year Dollars 1992-01-01 93388217 1997-01-01 128393124 2002-01-01 223826102 2003-01-01 206898379 2004-01-01 192347377 2005-01-01 151179953 2006-01-01 132983739 2007-01-01 129939364 2008-01-01 154804594 2009-01-01 155904481 2010-01-01 333576608 2011-01-01 327950977 2012-01-01 385150642 2013-01-01 419035184 2014-01-01 447872885 2015-01-01 440365525 2016-01-01 413844342