Year	Percent
1995-01-01	19.1387000000000000
1996-01-01	16.5772000000000000
1997-01-01	16.3467000000000000
1998-01-01	32.2537000000000000
1999-01-01	43.3170000000000000
2000-01-01	27.3511000000000000
2001-01-01	16.8166000000000000
2002-01-01	10.6905000000000000
2003-01-01	3.0057200000000000
2004-01-01	3.2825599999999997
2005-01-01	3.2568400000000000
2006-01-01	4.2929500000000000
2007-01-01	6.9924800000000005
2008-01-01	8.1272300000000000
2009-01-01	5.5249000000000000
2010-01-01	4.1193400000000000
2011-01-01	3.6829300000000003
2012-01-01	3.7694500000000000
2013-01-01	5.1516000000000000
2014-01-01	6.1303000000000000
2015-01-01	6.0063800000000000
2016-01-01	7.1130800000000000
2017-01-01	7.7789600000000005