Year	Percent
1992-01-01	14.600000
1993-01-01	21.800000
1994-01-01	30.800000
1995-01-01	28.800000
1996-01-01	23.300000
1997-01-01	19.200000
1998-01-01	15.800000
1999-01-01	13.200000
2000-01-01	10.976762
2001-01-01	10.487967
2002-01-01	8.900000
2003-01-01	11.990000
2004-01-01	9.930000
2005-01-01	5.410000
2006-01-01	7.978801
2007-01-01	7.012037
2008-01-01	10.122238
2009-01-01	5.921451
2010-01-01	4.756300
2011-01-01	5.780500
2012-01-01	5.204900
2013-01-01	2.921900
2014-01-01	1.241900
2015-01-01	1.086500
2016-01-01	0.166700
2017-01-01	-0.011100