Year	Percent
1983-01-01	0.049270999999999995
1984-01-01	0.163854000000000000
1985-01-01	0.295234999999999970
1986-01-01	0.327416000000000000
1987-01-01	0.324254000000000000
1988-01-01	0.236036000000000020
1989-01-01	0.168299000000000000
1990-01-01	0.077725000000000000
1991-01-01	0.059827000000000000
1992-01-01	0.056606000000000000
1993-01-01	0.056907000000000006
1994-01-01	0.119472000000000010
1995-01-01	0.061834000000000000
1996-01-01	0.073639000000000000
1997-01-01	0.175966000000000000
1998-01-01	1.340450000000000000
1999-01-01	1.039540000000000000
2000-01-01	0.884284000000000100
2001-01-01	0.921161000000000000
2002-01-01	0.846535000000000000
2003-01-01	0.762364000000000000
2004-01-01	0.761315000000000000
2005-01-01	0.743050000000000000
2006-01-01	0.760039999999999900
2007-01-01	0.641431000000000100
2008-01-01	0.419663000000000000
2009-01-01	0.794379000000000000
2010-01-01	0.645697000000000100
2011-01-01	0.583931000000000100
2012-01-01	0.580318999999999900
2013-01-01	0.543065999999999900
2014-01-01	0.452470000000000000
2015-01-01	0.472572999999999970
2016-01-01	0.419156999999999950