Year	Percent
1991-01-01	5.2765600000000000
1992-01-01	7.9607600000000005
1993-01-01	10.0731000000000000
1994-01-01	9.0834000000000000
1995-01-01	7.9082800000000000
1996-01-01	10.9805000000000000
1997-01-01	9.7458200000000000
1998-01-01	6.4407900000000000
1999-01-01	7.6912300000000000
2000-01-01	8.5175100000000010
2001-01-01	7.9022000000000000
2002-01-01	6.4492699999999990
2003-01-01	5.3098000000000000
2004-01-01	4.4977900000000000
2005-01-01	3.1583099999999997
2006-01-01	1.6693600000000000
2007-01-01	0.5412510000000000
2008-01-01	0.1102920000000000
2009-01-01	0.1038250000000000
2010-01-01	0.0954160000000000
2011-01-01	0.0875180000000000
2012-01-01	0.0857030000000000
2013-01-01	0.0852280000000000
2014-01-01	0.0835740000000000
2015-01-01	0.0793290000000000
2016-01-01	0.0741530000000000