1989 7.9

1984 7.9

1959 7.9

1987 7.9

1992 7.9

1985 8.0

1998 8.0

1991 8.0

1998 8.0

1978 8.0

1984 8.0

1979 8.0

1977 8.0

1966 8.0

1980 8.1

1999 8.1

1989 8.1

1971 8.1

1974 8.2

1981 8.2