1988

6.3

1961

8.0

1957

7.8

2004

7.2

2001

7.4

1998

8.2

1988

7.2

1993

5.6

1968

7.6

1932

7.4

1995

7.0

1996

6.5

1946

7.8

1956

7.9

1967

7.7

1965

7.5

1942

6.6

1973

6.9

1957

8.3

1997

7.2