Year Dollars 1992-01-01 22378144 1997-01-01 59135056 2002-01-01 46308526 2003-01-01 37956728 2004-01-01 48633295 2005-01-01 45577233 2006-01-01 45862578 2007-01-01 59872147 2008-01-01 79831728 2009-01-01 68293824 2010-01-01 87317761 2011-01-01 97730244 2012-01-01 80569964 2013-01-01 75384943 2014-01-01 68407071 2015-01-01 71881947 2016-01-01 114295019