1998

6.4

1965

7.4

1955

7.2

1993

6.3

1986

7.3

2020

6.7

1989

5.9

2022

7.8

1971

7.2

1954

7.9

1990

6.4

2010

6.3

1989

5.4

1984

7.5

1947

7.0

1992

5.0

2023

6.8

1940

7.8

2023

6.1

1997

7.4