2012

5.8

2020

6.1

1998

6.3

1968

6.4

2012

6.3

2023

6.6

2003

5.9

2011

4.8

1972

4.0

2002

5.6

1977

6.8

2013

5.3

2008

6.5

2007

6.6

2003

4.7

1998

6.0

2010

7.1

1979

7.3

2014

8.2