2006

5.9

1970

5.6

2015

10.0

1939

5.7

1955

6.5

1972

6.4

1973

5.5

1987

6.7

1988

5.0

1933

6.8

2010

4.4

1989

6.0

1946

5.2

2017

0.0

1991

5.8

1973

6.8

2010

5.6

1959

6.6

1969

5.8

2014

6.8