Year	Dollars
1992-01-01	373071801
1997-01-01	485992796
2002-01-01	531223571
2003-01-01	483835323
2004-01-01	461969451
2005-01-01	666356403
2006-01-01	709460381
2007-01-01	1068180422
2008-01-01	1018522976
2009-01-01	894424927
2010-01-01	1125517975
2011-01-01	1308833244
2012-01-01	1816097714
2013-01-01	1217080725
2014-01-01	1395574269
2015-01-01	1435908379
2016-01-01	1469019853