2004

8.1

1961

7.2

2004

6.9

1980

7.9

1946

8.3

1988

7.7

1997

4.6

1994

7.0

2007

7.3

1979

7.3

1938

7.5

1944

7.0

1999

7.1

1984

7.1

1982

7.5

1939

7.6

2003

8.3

1981

6.4

2001

7.5

1989

6.3