Year	Dollars
1997-01-01	1468256
2002-01-01	1592430
2003-01-01	2296095
2004-01-01	5612850
2005-01-01	12065209
2006-01-01	20288793
2007-01-01	38202489
2008-01-01	44020198
2009-01-01	26266712
2010-01-01	46570289
2011-01-01	84113601
2012-01-01	56137313
2013-01-01	53466027
2014-01-01	41380170
2015-01-01	23113833
2016-01-01	30749721