1974

6.5

2004

6.6

2009

6.6

2006

6.7

2002

6.9

1963

6.9

2009

6.5

1967

6.6

1997

6.2

2007

6.4

1998

6.1

2021

7.2

2013

5.1

1988

7.6

1953

6.6

1994

6.6

2013

5.7

1993

6.5

2001

5.7

1953

7.2