Year	Percent
1984-01-01	3.56221000000000000
1985-01-01	3.14070000000000000
1986-01-01	1.72122000000000000
1987-01-01	0.60518400000000000
1988-01-01	0.47840200000000005
1989-01-01	0.34812600000000005
1990-01-01	0.23850200000000000
1991-01-01	0.19095100000000000
1992-01-01	0.14206100000000000
1993-01-01	0.20201200000000000
1994-01-01	0.20305600000000000
1995-01-01	0.12427400000000000
1996-01-01	0.13662300000000000
1997-01-01	0.17487900000000000
1998-01-01	0.23653700000000000
1999-01-01	0.32118600000000000
2000-01-01	0.35133900000000000
2001-01-01	0.16957400000000000