Year	Percent
1996-01-01	0.2227880000000000
1997-01-01	1.2075799999999999
1998-01-01	4.0216100000000000
1999-01-01	7.2908200000000000
2000-01-01	12.2394000000000000
2001-01-01	10.3717000000000000
2002-01-01	9.2806300000000000
2003-01-01	7.3233300000000000
2004-01-01	5.1644100000000000
2005-01-01	3.5569599999999997
2006-01-01	2.9034400000000002
2007-01-01	1.9475300000000000
2008-01-01	1.4905500000000000
2009-01-01	1.9776200000000002
2010-01-01	1.8059100000000000
2011-01-01	1.5249300000000000
2012-01-01	1.9202500000000000
2013-01-01	2.0901600000000000
2014-01-01	1.5662600000000000
2015-01-01	2.1581400000000000
2016-01-01	2.4529600000000000