2006

8.2

1999

6.1

1973

6.7

1976

7.0

2004

6.5

1991

6.7

1981

6.2

1963

6.3

1983

2.7

1954

6.9

1928

7.0

1978

6.8

2010

7.7

1975

4.2

1940

7.1

2014

6.0

2001

6.6

2020

8.0

2022

6.9

1982

6.2