1992

7.4

1978

6.6

1993

6.9

2020

4.2

2002

7.1

2007

6.7

1935

7.3

1940

7.4

1955

6.6

2005

5.8

1978

6.8

2018

6.8

2021

7.0

1967

7.3

1956

6.6

1938

6.0

1965

8.5

1987

0.0

2020

0.0

1999

7.6