Year Dollars 1992-01-01 13527960 1997-01-01 25260326 2002-01-01 14186914 2003-01-01 27239462 2004-01-01 18972729 2005-01-01 106268061 2006-01-01 35676201 2007-01-01 30369683 2008-01-01 31558995 2009-01-01 24675876 2010-01-01 22566228 2011-01-01 34914879 2012-01-01 45892821 2013-01-01 46718224 2014-01-01 72114682 2015-01-01 40066797 2016-01-01 50612928