1963

6.3

1979

6.3

1978

4.9

1985

6.1

1966

1.0

1970

0.0

1991

6.3

1977

3.5

1980

6.3

1971

0.0

1969

0.0

1968

4.4

1973

2.3

1962

7.0

1960

0.0

1957

6.4

1959

6.8

1960

6.2

1971

3.0

1973

2.3

1974

6.0

1988

9.0

1957

3.7

1976

3.6

1970

2.0