1991

4.8

1914

6.5

1957

8.3

1971

7.4

1979

6.9

2000

6.3

2014

7.2

2005

7.5

1989

7.8

1930

7.8

2001

6.8

1974

7.8

1993

6.2

2006

6.6

2019

5.2

2018

7.8

2016

4.8

2017

6.9

2007

7.2

2005

6.3