Year	Dollars
1992-01-01	7818626694
1997-01-01	14174230650
2002-01-01	10274081540
2003-01-01	10964001895
2004-01-01	12552523620
2005-01-01	12897428071
2006-01-01	13109399087
2007-01-01	12890161163
2008-01-01	12380312559
2009-01-01	10373219816
2010-01-01	11679784952
2011-01-01	12504106667
2012-01-01	12443660458
2013-01-01	12191093916
2014-01-01	11769552616
2015-01-01	11422520202