Year Dollars 1992-01-01 1493357 1997-01-01 885110 2002-01-01 6465029 2003-01-01 9271891 2004-01-01 5527545 2005-01-01 11204068 2006-01-01 7629164 2007-01-01 6272059 2008-01-01 15864913 2009-01-01 8172781 2010-01-01 7590470 2011-01-01 17945644 2012-01-01 13243112 2013-01-01 17317497 2014-01-01 14035666 2015-01-01 13682602 2016-01-01 10095335