Year	Dollars
1997-01-01	1628288
2002-01-01	6288877
2003-01-01	7353959
2004-01-01	8842716
2006-01-01	30642922
2007-01-01	14609452
2008-01-01	8190493
2009-01-01	4605944
2010-01-01	4535064
2011-01-01	5216018
2012-01-01	5227145
2013-01-01	12525783
2014-01-01	11459204
2015-01-01	7382815
2016-01-01	8417783