2010

6.0

1977

6.5

1993

6.4

1957

7.2

2017

7.8

1985

6.7

2008

6.2

2010

7.0

2011

5.8

2012

7.7

2019

8.0

2017

6.5

2011

9.1

1972

6.2

2015

6.9

2016

8.0

1973

5.7

2015

7.3

2020

7.3