Year	Percent
1986-01-01	0.93750000000000000
1987-01-01	0.77818500000000000
1988-01-01	0.51792200000000000
1989-01-01	0.29224900000000000
1990-01-01	0.95413200000000000
1991-01-01	0.76295300000000000
1992-01-01	0.71805000000000000
1993-01-01	0.47856000000000004
1994-01-01	0.28670000000000000
1995-01-01	0.12826700000000002
1996-01-01	0.12826700000000002
1997-01-01	0.00052200000000000
1998-01-01	0.00409000000000000
1999-01-01	0.00409000000000000
2000-01-01	0.00409000000000000
2001-01-01	2.66225000000000000
2002-01-01	3.56740000000000000
2003-01-01	3.06981000000000000
2004-01-01	2.36620000000000000
2005-01-01	2.06120000000000000
2006-01-01	1.69489000000000020
2007-01-01	1.34213999999999990
2008-01-01	1.17116000000000000