Year Dollars 1992-01-01 835509 1997-01-01 3476049 2002-01-01 2228291 2003-01-01 11337452 2004-01-01 2270878 2005-01-01 1878160 2006-01-01 1825233 2007-01-01 4394832 2008-01-01 42725982 2009-01-01 10788934 2010-01-01 20136291 2011-01-01 10583422 2012-01-01 10003154 2013-01-01 29685745 2014-01-01 15319838 2015-01-01 23328031 2016-01-01 22806147