Year	Percent
1989-01-01	10.9167000000000000
1990-01-01	4.1000000000000000
1991-01-01	4.7442800000000010
1992-01-01	8.6416700000000000
1993-01-01	9.7750000000000000
1994-01-01	7.0916700000000000
1995-01-01	7.8434300000000010
1996-01-01	5.4311500000000000
1997-01-01	3.8627000000000000
1998-01-01	4.3795199999999990
1999-01-01	3.4618400000000000
2000-01-01	3.3075200000000000
2001-01-01	2.7978099999999997
2002-01-01	2.2809500000000000
2003-01-01	2.4136900000000003
2004-01-01	1.8859900000000000
2005-01-01	2.2788500000000000
2006-01-01	1.7603099999999998
2007-01-01	1.9749299999999999
2008-01-01	2.4209300000000000
2009-01-01	3.0682800000000000
2010-01-01	2.9107100000000000
2011-01-01	2.5805400000000000
2012-01-01	2.5994400000000000
2013-01-01	2.3951300000000000
2014-01-01	2.7268500000000000
2015-01-01	2.3532300000000000
2016-01-01	1.4436500000000000