1976

6.0

2002

8.1

2006

0.0

1951

6.4

2007

7.7

2011

8.0

2007

6.0

2002

8.7

0.0

2019

7.5

1998

7.1

2005

7.9

5.3

2002

6.6

7.0

2010

0.0

1975

7.0

1981

6.1

7.0

2012

7.0