1956

6.0

1998

6.0

1939

4.0

1935

6.0

2008

7.0

1973

7.8

1963

7.9

1994

8.7

1986

7.3

1991

6.1

1993

7.5

2003

6.0

1979

7.5

2002

6.4

2006

6.4

2009

6.7

2002

7.7

1976

5.6

1969

6.3

2008

7.3