Year Dollars 1992-01-01 5891046 1997-01-01 3740734 2002-01-01 4455162 2003-01-01 5295912 2004-01-01 5866014 2005-01-01 5439629 2006-01-01 5570547 2007-01-01 6123272 2008-01-01 7919228 2009-01-01 4407052 2010-01-01 6091580 2011-01-01 6536249 2012-01-01 6103304 2013-01-01 4734010 2014-01-01 3032143 2015-01-01 1657378 2016-01-01 4834484