Year	Percent
1990-01-01	1.3903000000000000
1991-01-01	1.4585600000000000
1992-01-01	1.7710200000000000
1993-01-01	1.5144100000000000
1994-01-01	1.5144100000000000
1995-01-01	1.5144100000000000
1996-01-01	1.1823600000000000
1997-01-01	0.9112959999999999
1998-01-01	0.9764240000000000
1999-01-01	1.0811300000000000
2000-01-01	1.1551400000000000
2001-01-01	1.0783600000000000
2002-01-01	0.5489760000000000
2003-01-01	0.5795890000000000
2004-01-01	0.5318830000000000
2005-01-01	0.6168130000000001
2006-01-01	0.6365649999999999
2007-01-01	0.7076570000000000
2008-01-01	0.7912030000000000
2009-01-01	0.8458880000000000
2010-01-01	0.7932859999999999
2011-01-01	0.7586950000000000
2012-01-01	0.8452840000000000
2013-01-01	0.9811010000000000
2014-01-01	0.9521480000000000
2015-01-01	0.8642100000000000