Year Dollars 1992-01-01 30359940 1997-01-01 13977711 2002-01-01 23388155 2003-01-01 32288307 2004-01-01 35978248 2005-01-01 68941663 2006-01-01 99749653 2007-01-01 121997419 2008-01-01 150201763 2009-01-01 96426644 2010-01-01 137772288 2011-01-01 134757061 2012-01-01 134482165 2013-01-01 347526718 2014-01-01 126383019 2015-01-01 123440356 2016-01-01 138239027