1961

7.7

2000

6.6

1939

7.6

1980

7.3

1982

7.4

1946

7.5

2003

7.0

1983

6.5

1992

7.3

1985

6.5

2020

5.4

1959

7.8

1953

7.1

1999

5.8

2002

5.2

2025

6.1

1991

8.3

1961

7.7

2010

5.8

2021

7.3