1978

8.0

2023

7.8

1988

7.8

2004

7.8

2006

7.2

2002

8.1

2009

7.7

2007

5.9

2012

7.9

1984

7.7

2002

7.4

1976

7.4

2006

8.1

2021

4.3

1994

8.2

2010

7.6

2007

6.6

2020

8.0

2003

7.2

1997

8.4