Year	Dollars
1992-01-01	37445162
1997-01-01	49551470
2002-01-01	61802819
2003-01-01	108673504
2004-01-01	152731639
2005-01-01	155330320
2006-01-01	139105126
2007-01-01	121452980
2008-01-01	185301289
2009-01-01	113865062
2010-01-01	158852982
2011-01-01	208907967
2012-01-01	204200164
2013-01-01	191752440
2014-01-01	151132663
2015-01-01	172621418
2016-01-01	188559008