Year	Percent
1995-01-01	47.395900000000000
1996-01-01	45.080800000000000
1997-01-01	40.814900000000000
1998-01-01	39.159100000000000
1999-01-01	39.103800000000000
2000-01-01	32.681300000000000
2001-01-01	33.488700000000000
2002-01-01	58.085600000000000
2003-01-01	4.113750000000000
2004-01-01	12.138700000000000
2005-01-01	21.056600000000000
2006-01-01	44.352000000000000
2007-01-01	32.173400000000000
2008-01-01	20.598000000000003
2009-01-01	16.302100000000000
2010-01-01	23.728400000000000
2011-01-01	19.725400000000000
2012-01-01	13.496500000000000
2013-01-01	19.049500000000000
2014-01-01	15.966800000000000
2015-01-01	15.986700000000000
2016-01-01	18.573900000000000