Year	Percent
1995-01-01	39.2230833575000
1996-01-01	39.5266027425000
1997-01-01	39.5845147875000
1998-01-01	39.5178209950000
1999-01-01	39.0258629100000
2000-01-01	38.4617351525000
2001-01-01	38.5934301100000
2002-01-01	38.7829663975000
2003-01-01	38.2967646700000
2004-01-01	37.8015224975000
2005-01-01	37.5748954250000
2006-01-01	37.0821418350000
2007-01-01	36.3440133575000
2008-01-01	36.2337456250000
2009-01-01	35.8780630475000
2010-01-01	35.4792495400000
2011-01-01	35.4370433125000
2012-01-01	28.5250000000000
2013-01-01	28.4000000000000
2014-01-01	27.8250000000000
2015-01-01	27.8166666666667
2016-01-01	27.8833333333333
2017-01-01	27.8750000000000