Year	Dollars
1992-01-01	4041171
1997-01-01	6261728
2002-01-01	3141568
2003-01-01	3523585
2004-01-01	3875553
2005-01-01	5661622
2006-01-01	3627828
2007-01-01	13377385
2008-01-01	11132217
2009-01-01	9645311
2010-01-01	24569922
2011-01-01	31963612
2012-01-01	21168171
2013-01-01	30886578
2014-01-01	34476167
2015-01-01	25427451
2016-01-01	19046970