1957

8.5

1966

7.7

1932

7.4

1989

7.2

1996

6.8

1934

5.5

1929

7.5

1938

6.0

2006

6.9

1984

0.0

2020

6.1

1968

0.0

2019

6.1

2003

5.1

1969

0.0

1978

6.8

2007

6.3

1961

5.6

1950

3.3

1960

5.4