2001 6.5

1998 6.5

2000 6.5

2001 6.5

2002 6.6

1994 6.6

1982 6.6

2003 6.6

1980 6.6

1995 6.6

1988 6.6

1996 6.6

1994 6.6

1997 6.6

1977 6.6

1985 6.6

1993 6.6

1992 6.6

1997 6.6

1991 6.6