Year	Percent
1987-01-01	0.50045699999999990
1988-01-01	4.69253000000000050
1989-01-01	6.96285000000000000
1990-01-01	6.96285000000000000
1991-01-01	1.39178999999999990
1992-01-01	1.69127000000000000
1993-01-01	1.65659000000000020
1994-01-01	0.98538100000000000
1995-01-01	0.37991100000000000
1996-01-01	0.22944600000000000
1997-01-01	0.43589799999999995
1998-01-01	0.24788900000000000
1999-01-01	0.24059100000000000
2000-01-01	0.19367500000000000
2001-01-01	0.19367500000000000
2002-01-01	0.19367500000000000
2003-01-01	0.19367500000000000
2004-01-01	0.19367500000000000
2005-01-01	0.03008800000000000
2006-01-01	0.02483100000000000