Year	Dollars
1992-01-01	135208446
1997-01-01	218733136
2002-01-01	278099165
2003-01-01	236176271
2004-01-01	213553163
2005-01-01	242887034
2006-01-01	318215152
2007-01-01	375322490
2008-01-01	353593971
2009-01-01	306534336
2010-01-01	345312268
2011-01-01	357569502
2012-01-01	388496581
2013-01-01	361913836
2014-01-01	412309539
2015-01-01	381569385
2016-01-01	393238886