1939

7.1

1955

7.2

1987

5.3

2012

8.2

2020

7.0

1967

6.7

1979

6.2

1999

7.2

1987

5.7

1973

7.3

1990

6.7

2023

6.8

2023

4.1

2021

7.5

2017

6.1

1960

7.7

1944

6.9

1976

5.6

1957

8.0

2013

6.6