Year	Dollars
1992-01-01	599608396
1997-01-01	571748248
2002-01-01	457390600
2003-01-01	373515680
2004-01-01	432386459
2005-01-01	477227262
2006-01-01	482464709
2007-01-01	518709173
2008-01-01	728664720
2009-01-01	630004031
2010-01-01	760783480
2011-01-01	794800204
2012-01-01	756341014
2013-01-01	898379456
2014-01-01	754441630
2015-01-01	647538838
2016-01-01	587817704