1998

7.4

1988

7.7

2020

5.7

1978

5.6

1980

7.6

2008

6.0

1944

5.7

1957

7.2

1997

5.8

1937

6.8

2000

6.1

2011

0.0

1941

7.0

1917

0.0

2002

9.5

2005

7.1

1997

7.5

1980

6.5

1956

6.6

1977

5.8