Year	Dollars
1992-01-01	9933571
1997-01-01	13224163
2002-01-01	9239185
2003-01-01	10722031
2004-01-01	21451022
2005-01-01	25485558
2006-01-01	11316225
2007-01-01	9069579
2008-01-01	60512708
2009-01-01	32701723
2010-01-01	55860804
2011-01-01	31978620
2012-01-01	34218619
2013-01-01	48248675
2014-01-01	31412934
2016-01-01	13549877