1994

6.3

2009

6.5

2013

8.0

2009

5.7

2009

6.3

2012

5.6

1987

5.8

1939

3.7

2013

6.8

1959

0.0

1981

6.0

1958

6.3

1988

5.3

1945

5.0

1937

6.0

1980

3.3

1938

5.9

1974

2.5

1934

6.2