Year	Percent
1990-01-01	0.11496200000000000
1991-01-01	0.13449900000000000
1992-01-01	0.14372400000000000
1993-01-01	0.12504100000000000
1994-01-01	0.09984600000000000
1995-01-01	0.10540400000000000
1996-01-01	0.12729700000000000
1997-01-01	0.15517800000000000
1998-01-01	0.13112100000000002
1999-01-01	0.16718300000000000
2000-01-01	0.19572699999999998
2001-01-01	0.19204900000000000
2002-01-01	0.19157900000000000
2003-01-01	0.22686199999999998
2004-01-01	0.21271900000000002
2005-01-01	0.19185200000000000
2006-01-01	0.18173100000000000
2007-01-01	0.15732500000000000
2008-01-01	0.16565200000000000
2009-01-01	0.18961400000000000
2010-01-01	0.18798299999999998
2011-01-01	0.19251500000000002
2012-01-01	0.17266300000000000
2013-01-01	0.18749600000000000
2014-01-01	0.16041300000000000
2015-01-01	0.16088600000000000
2016-01-01	0.19488200000000000