Year	Percent
1989-01-01	0.263292000000000
1990-01-01	1.916910000000000
1991-01-01	2.638090000000000
1992-01-01	2.411130000000000
1993-01-01	5.606880000000000
1994-01-01	5.839150000000000
1995-01-01	6.402010000000000
1996-01-01	10.211300000000000
1997-01-01	11.184100000000000
1998-01-01	10.778600000000000
1999-01-01	13.579900000000000
2000-01-01	9.923770000000000
2001-01-01	6.321140000000000
2002-01-01	5.890560000000000
2003-01-01	5.571850000000000
2004-01-01	6.584820000000000
2005-01-01	8.224930000000000
2006-01-01	9.547939999999999
2007-01-01	15.453300000000000
2008-01-01	16.550500000000000
2009-01-01	14.472200000000000
2010-01-01	13.417900000000000
2011-01-01	11.966300000000000
2012-01-01	10.404300000000000
2013-01-01	9.966289999999999
2014-01-01	9.888130000000000
2015-01-01	8.992970000000000
2016-01-01	8.875330000000000
2017-01-01	9.011770000000000