1978

5.3

1970

3.0

1979

7.0

1998

8.2

1961

5.5

1955

6.6

1967

6.8

1979

0.0

1963

6.5

1957

7.7

1976

7.5

1958

6.2

1984

5.7

1964

7.9

1979

6.0