1958

6.3

1963

7.0

1958

5.5

1963

7.9

1970

5.6

1969

3.8

1978

6.2

1961

7.7

1957

5.0

1973

3.7

1978

7.8

1974

5.3

1979

4.6

1974

6.2

1974

0.0

1984

6.2

1974

5.0

1978

4.0

1969

5.5

1966

6.0

1977

5.7

1965

4.9

1981

5.0

1972

4.8

1997

4.1

1979

4.3

1963

6.9

1960

7.9

1966

5.0

1969

3.7