Year	Dollars
1992-01-01	9154775
1997-01-01	17819057
2002-01-01	18613706
2003-01-01	26440263
2004-01-01	24609990
2005-01-01	17872298
2006-01-01	29151301
2007-01-01	38892806
2008-01-01	32266788
2009-01-01	31550597
2010-01-01	46507023
2011-01-01	66238793
2012-01-01	70935142
2013-01-01	67592527
2014-01-01	53743634
2015-01-01	42681079
2016-01-01	39485820