Year	Dollars
1992-01-01	229741723
1997-01-01	208397691
2002-01-01	286071185
2003-01-01	270433668
2004-01-01	191883875
2005-01-01	158816783
2006-01-01	349933299
2007-01-01	548976194
2008-01-01	470469358
2009-01-01	513966864
2010-01-01	433737683
2011-01-01	475344452
2012-01-01	548274266
2013-01-01	564996771
2014-01-01	588616995
2015-01-01	417777403
2016-01-01	284684997