Year Dollars 1992-01-01 63183055 1997-01-01 103731486 2002-01-01 51522456 2003-01-01 49184425 2004-01-01 75087713 2005-01-01 106274396 2006-01-01 183740324 2007-01-01 254763924 2008-01-01 357536829 2009-01-01 205012660 2010-01-01 182956941 2011-01-01 196013849 2012-01-01 225766006 2013-01-01 294836914 2014-01-01 202055090 2015-01-01 174409938 2016-01-01 141719876