Year Dollars 1992-01-01 32888673 1997-01-01 50126260 2002-01-01 33136992 2003-01-01 34519753 2004-01-01 33090476 2005-01-01 36851681 2006-01-01 31745525 2007-01-01 36185866 2008-01-01 48325857 2009-01-01 34088617 2010-01-01 40758083 2011-01-01 36867729 2012-01-01 55903522 2013-01-01 61311587 2014-01-01 46707347 2015-01-01 45249913 2016-01-01 44159401