Year Dollars 1992-01-01 5146035 1997-01-01 22078135 2002-01-01 21133255 2003-01-01 19384747 2004-01-01 27572448 2005-01-01 20425314 2006-01-01 23468674 2007-01-01 32167938 2008-01-01 80412011 2009-01-01 58645214 2010-01-01 38239658 2011-01-01 49118858 2012-01-01 58899527 2013-01-01 75631955 2014-01-01 92144636 2015-01-01 59801873 2016-01-01 42005430