1980

5.3

2006

6.0

2008

5.8

2003

6.6

1994

5.8

2014

7.5

1938

5.8

1986

6.3

2021

7.4

2019

6.9

1979

5.7

2006

6.5

2001

5.9

1987

6.1

1989

5.4

1944

6.3

1959

6.9

1997

5.0

1923

0.0

1954

8.0