1985 6.2

1985 8.3

1985 7.2

1985 7.7

1985 8.2

1984 8.4

1984 7.1

1984 7.8

1984 6.3

1983 7.2

1983 6.1

1983 8.0

1983 7.8

1982 6.7

1982 8.0

1982 7.2

1982 5.7

1982 7.3

1982 7.4

1981 6.9