1971

6.8

1957

7.4

1957

6.2

1960

6.3

1994

5.8

1987

6.5

1992

6.5

1958

7.1

2017

8.2

1962

7.9

1975

7.3

1995

5.7

1984

7.3

1993

6.2

1972

6.0

2020

6.9

1984

7.2

2008

5.4

2024

6.9

1990

6.8