Year Dollars 1992-01-01 26891170 1997-01-01 9481595 2002-01-01 29314835 2003-01-01 18658193 2004-01-01 25314429 2005-01-01 33045052 2006-01-01 40643331 2007-01-01 49930675 2008-01-01 46812102 2009-01-01 22747752 2010-01-01 21134181 2011-01-01 74392566 2012-01-01 31534250 2013-01-01 36826690 2014-01-01 29293185 2015-01-01 30346741 2016-01-01 35228817