Year	Dollars
1997-01-01	15892539
2002-01-01	8393913
2003-01-01	10216182
2004-01-01	2229436
2005-01-01	2944264
2006-01-01	4592918
2007-01-01	7138790
2008-01-01	7607430
2009-01-01	5707958
2010-01-01	3317504
2011-01-01	1596747
2012-01-01	4216269
2013-01-01	3054523
2014-01-01	9205477
2015-01-01	3515803
2016-01-01	4168813