Year	Dollars
1997-01-01	3072800
2002-01-01	10457573
2003-01-01	3611580
2004-01-01	4436917
2005-01-01	12924754
2006-01-01	14863704
2007-01-01	46576695
2008-01-01	26790635
2009-01-01	20586047
2010-01-01	16950329
2011-01-01	9620100
2012-01-01	9588389
2013-01-01	16695844
2014-01-01	11960372
2015-01-01	19686616
2016-01-01	14945950