1995

8.2

1923

7.7

1932

7.4

1978

6.8

2009

6.5

1984

7.2

1984

7.3

1979

6.1

1990

6.0

1949

7.5

1974

7.0

1925

8.0

1975

8.1

1991

7.5

2002

7.5

1984

6.6

1957

7.4

1968

7.1

1991

7.3

1933

7.3