1984 6.1

1984 7.2

1984 7.8

1984 6.0

1984 3.9

1984 6.3

1984 7.9

1984 6.4

1984 5.5

1983 7.2

1983 8.0

1983 7.0

1983 6.3

1983 6.9

1982 7.2

1982 7.5

1982 5.4

1981 8.3

1981 6.7

1981 7.1