Year Dollars 1992-01-01 56837736 1997-01-01 39382776 2002-01-01 28734940 2003-01-01 35195109 2004-01-01 37279980 2005-01-01 43151247 2006-01-01 82191892 2007-01-01 57787196 2008-01-01 60652936 2009-01-01 52447941 2010-01-01 48035302 2011-01-01 53009541 2012-01-01 61216038 2013-01-01 44193645 2014-01-01 50298821 2015-01-01 56180740 2016-01-01 37880369