1931

8.3

2011

8.0

1937

6.7

1980

8.4

1956

7.7

1962

7.3

1995

8.2

1952

8.3

1990

7.4

2003

7.3

1931

7.2

1957

8.1

2011

5.5

1989

7.2

1999

7.4

2005

6.8

1946

7.7

1966

7.2

2005

7.1

1950

8.3