Year	Dollars
1992-01-01	457797091
1997-01-01	341117792
2002-01-01	303940819
2003-01-01	376143813
2004-01-01	591277132
2005-01-01	379773850
2006-01-01	318699351
2007-01-01	434112279
2008-01-01	587785190
2009-01-01	635073351
2010-01-01	443730230
2011-01-01	449419124
2012-01-01	326558563
2013-01-01	563993792
2014-01-01	498388202
2015-01-01	546227405
2016-01-01	519888314