Year Dollars 1992-01-01 3417977 1997-01-01 4695544 2002-01-01 8116560 2003-01-01 10951826 2004-01-01 10789960 2005-01-01 15940062 2006-01-01 46935900 2007-01-01 51155400 2008-01-01 57697971 2009-01-01 30736789 2010-01-01 25310262 2011-01-01 49331898 2012-01-01 45090356 2013-01-01 43249754 2014-01-01 36155913 2015-01-01 52067604 2016-01-01 91080966