1996

5.8

1981

6.6

1978

6.8

1995

6.4

1991

2.1

1970

7.0

1958

6.4

2004

7.1

1989

8.7

1991

4.3

1974

6.1

2023

3.7

1955

7.0

1939

6.8

1946

6.3

10.0

1988

0.0

1954

7.2

1953

7.3

2023

6.5