Year	Percent
1996-01-01	7.4662800000000000
1997-01-01	5.7456400000000000
1998-01-01	4.8459500000000000
1999-01-01	3.4452400000000000
2000-01-01	2.5211400000000000
2001-01-01	2.4815200000000000
2002-01-01	2.8302500000000000
2003-01-01	2.1264100000000000
2004-01-01	1.8384400000000000
2005-01-01	2.1011400000000000
2006-01-01	1.9309700000000000
2007-01-01	2.4187100000000000
2008-01-01	2.4187100000000000
2009-01-01	2.4187100000000000
2010-01-01	2.4187100000000000
2011-01-01	2.4187100000000000
2012-01-01	3.0565500000000000
2013-01-01	0.5043040000000000
2014-01-01	1.3354700000000002
2015-01-01	0.5756460000000000
2016-01-01	0.6638020000000000