Year Dollars 1992-01-01 3011640 1997-01-01 12877642 2002-01-01 10686689 2003-01-01 13571917 2004-01-01 11684555 2005-01-01 17680483 2006-01-01 21942135 2007-01-01 23479546 2008-01-01 18496853 2009-01-01 17640107 2010-01-01 23386179 2011-01-01 29384845 2012-01-01 24104886 2013-01-01 70455255 2014-01-01 30680241 2015-01-01 34321103 2016-01-01 37106986