1993

5.4

2011

6.6

1976

7.5

1920

7.3

1982

6.8

1946

7.6

1920

7.9

1962

7.0

2003

8.5

2004

7.1

1994

5.3

1989

5.9

1975

6.1

1968

7.1

1978

7.2

1941

7.0

1950

8.0

1980

8.4

1991

6.7

1952

6.3