Year	Percent
1983-01-01	0.8976920000000000
1984-01-01	0.9931780000000001
1985-01-01	1.0583500000000000
1986-01-01	0.8938850000000000
1987-01-01	0.9115209999999999
1988-01-01	1.0548700000000000
1989-01-01	0.8047940000000000
1990-01-01	0.8450400000000000
1991-01-01	0.8418230000000000
1992-01-01	0.8992260000000000
1993-01-01	0.5440149999999999
1994-01-01	0.6138960000000000
1995-01-01	0.5944940000000000
1996-01-01	0.5107149999999999
1997-01-01	0.7727500000000000
1998-01-01	0.6836340000000000
1999-01-01	1.1466300000000000
2000-01-01	2.1379099999999998
2001-01-01	2.2554800000000000
2002-01-01	2.7113000000000000
2003-01-01	3.1105600000000000
2004-01-01	4.0995700000000000
2005-01-01	3.8013900000000000
2006-01-01	4.2369600000000000
2007-01-01	4.4464000000000000
2008-01-01	5.0229000000000000
2009-01-01	4.8675300000000000
2010-01-01	5.1431100000000000
2011-01-01	5.4272199999999990
2012-01-01	6.3488500000000000
2013-01-01	6.3640300000000005
2014-01-01	6.4145000000000000
2015-01-01	5.5616800000000000
2016-01-01	5.3284500000000000