1995

5.9

1961

7.7

1987

6.7

1976

6.5

1961

7.3

1931

6.9

1965

8.0

2014

5.6

1969

7.7

1960

7.4

1956

6.1

1969

7.5

1972

7.1

1979

7.1

2001

7.0

1980

8.3

1975

7.9

1995

6.8

2010

6.0

1962

7.4