1991

7.1

2013

6.7

1992

6.9

1994

6.8

1979

8.2

1957

8.3

2000

7.3

1987

8.0

2003

7.8

1938

7.5

2010

6.2

1966

7.1

1942

7.0

1968

7.1

2021

7.4

1988

5.2

1973

7.0

1950

7.5

1983

7.0

1949

7.4