1977

6.3

1972

3.6

1978

4.0

1977

0.0

1978

6.2

1978

6.0

1979

6.0

1973

6.2

1972

6.6

1971

5.7

1977

9.0

1978

4.3

1979

4.7

1978

4.5

1972

6.7

1971

6.3

1972

6.5

1977

4.2

1977

5.2

1971

6.7

1978

0.0