Year Dollars 1992-01-01 22027677 1997-01-01 29336217 2002-01-01 25128274 2003-01-01 19968102 2004-01-01 18569119 2005-01-01 38168722 2006-01-01 44732680 2007-01-01 29803884 2008-01-01 59675456 2009-01-01 24269698 2010-01-01 45893964 2011-01-01 55674331 2012-01-01 20837954 2013-01-01 13106977 2014-01-01 17864358 2015-01-01 13380950 2016-01-01 14311632