Year Dollars 1992-01-01 9354522 1997-01-01 21870621 2002-01-01 23115822 2003-01-01 32014360 2004-01-01 32784084 2005-01-01 40701605 2006-01-01 113179866 2007-01-01 96970916 2008-01-01 107352816 2009-01-01 57038462 2010-01-01 73074492 2011-01-01 83539044 2012-01-01 65136046 2013-01-01 74190255 2014-01-01 77133586 2015-01-01 65639688 2016-01-01 58354050