Year	Dollars
1992-01-01	459338280
1997-01-01	763695572
2002-01-01	417966327
2003-01-01	424056783
2004-01-01	392081586
2005-01-01	364135362
2006-01-01	294807027
2007-01-01	353401347
2008-01-01	329674519
2009-01-01	270024440
2010-01-01	312439104
2011-01-01	368244969
2012-01-01	422138680
2013-01-01	428677579
2014-01-01	502885734
2015-01-01	460461570
2016-01-01	439049838