Year	Dollars
1992-01-01	35043838
1997-01-01	73176137
2002-01-01	61753916
2003-01-01	69271201
2004-01-01	74237008
2005-01-01	76586701
2006-01-01	142924021
2007-01-01	130947407
2008-01-01	146066770
2009-01-01	157454071
2010-01-01	182437737
2011-01-01	239031903
2012-01-01	244485730
2014-01-01	233221227
2015-01-01	247432000
2016-01-01	229751286