1974 8.2

1974 7.1

1973 7.3

1973 7.0

1973 7.8

1973 8.2

1973 8.2

1973 7.1

1973 7.4

1973 8.1

1973 7.4

1972 7.2

1972 7.7

1972 6.7

1972 7.3

1972 6.0

1971 8.3

1971 8.1

1971 7.1

1971 7.2