1961

6.3

1979

5.0

1963

6.6

1983

6.0

1966

7.7

1979

7.0

1981

5.0

1978

7.2

2014

6.5

1967

7.5

1979

5.7

2005

4.8

1965

7.8

1960

6.4

1982

8.0

1974

6.0