Year	Percent
1990-01-01	0.022438999999999997
1991-01-01	0.077416000000000000
1992-01-01	0.096042999999999990
1993-01-01	0.098425000000000000
1994-01-01	0.098970000000000000
1995-01-01	0.101880000000000000
1996-01-01	0.190834000000000000
1997-01-01	0.105887000000000000
1998-01-01	0.122893000000000000
1999-01-01	0.152586000000000000
2000-01-01	0.193968000000000000
2001-01-01	0.241323999999999980
2002-01-01	0.278764000000000000
2003-01-01	0.288790000000000000
2004-01-01	0.275821000000000000
2005-01-01	0.270474000000000000
2006-01-01	0.243761999999999980
2007-01-01	0.228948000000000000
2008-01-01	0.206154000000000000
2009-01-01	0.218480999999999980
2010-01-01	0.220379000000000000
2011-01-01	0.199345000000000000
2012-01-01	0.193922000000000000
2013-01-01	0.193640000000000000
2014-01-01	0.195068000000000020
2015-01-01	0.207638000000000020