1932

7.5

1996

6.4

1928

7.0

2005

6.5

1956

7.9

1967

7.7

1965

7.5

1968

6.8

1968

7.2

1989

7.8

1979

5.7

1973

6.9

1929

6.1

1925

7.1

1975

7.8

1957

8.3

1957

7.6

1933

0.0

2016

6.8

2002

6.7