1976

7.6

1984

5.4

2018

6.3

2004

6.9

1982

7.2

1966

6.5

1996

7.0

1918

4.8

2013

7.1

2006

6.8

1998

7.9

1928

5.2

1986

5.6

2000

5.8

1983

1.5

1993

6.6

1971

0.0

1923

7.5

1981

6.5

1938

7.5