1978

8.0

1976

0.0

1974

7.5

1973

6.1

1958

0.0

1957

4.3

1979

6.0

1981

4.6

1974

2.0

1971

0.0

1976

5.2

1982

5.7

1985

3.0

1963

4.0

1969

0.0