1978 6.8

1977 7.4

1977 8.0

1977 7.0

1977 7.4

1977 7.0

1977 5.2

1977 6.8

1977 4.0

1977 8.2

1977 5.3

1977 7.9

1977 7.6

1977 5.1

1976 4.4

1976 8.2

1976 7.5

1976 7.4

1976 7.2

1976 5.3