1971

3.0

1983

4.0

1954

6.3

2022

5.0

2002

7.1

2005

6.3

1987

6.2

2019

8.0

2007

6.1

2006

7.8

2008

6.0

2004

6.5

1996

8.0

2004

7.8

2005

7.5

2002

5.6

2001

4.5

2008

4.9

2009

4.6

1975

5.8