Year	Percent
1995-01-01	43.980100000000000
1996-01-01	39.759200000000000
1997-01-01	36.911800000000000
1998-01-01	24.354600000000000
1999-01-01	21.090900000000000
2000-01-01	25.592500000000000
2001-01-01	30.487300000000000
2002-01-01	32.995100000000000
2003-01-01	9.461470000000000
2004-01-01	7.728389999999999
2005-01-01	9.750580000000001
2006-01-01	30.669400000000000
2007-01-01	29.757300000000000
2008-01-01	15.683300000000000
2009-01-01	6.797350000000000
2010-01-01	12.450000000000000
2011-01-01	22.383900000000000
2012-01-01	24.084300000000000
2013-01-01	16.094100000000000
2014-01-01	10.783200000000000
2015-01-01	8.247270000000000
2016-01-01	6.154540000000000