5.8

1996

5.3

1932

6.2

2006

6.4

2019

6.5

2015

7.4

2008

6.9

2013

6.3

2010

7.1

1970

6.1

2021

7.7

7.8

1970

8.0

1999

5.9

2007

7.7

2010

6.5

2010

9.1

1984

6.1

1988

6.5

1988

6.7