1987

6.4

2008

7.0

1990

7.3

1980

6.3

1950

7.7

1972

2.6

1952

7.0

1975

0.0

1956

4.0

1956

0.0

1993

6.9

1978

6.6

1976

0.0

1924

0.0

1960

5.4

1999

7.6

1955

6.5

1967

7.3

2007

6.7

2024

6.0