1970

0.0

1974

7.0

1961

0.0

1966

6.8

1976

7.1

1991

6.6

1993

6.7

1973

7.7

2021

4.8

1975

7.0

1960

6.9

1959

6.4

1962

8.0

1967

0.0

1999

0.0

1965

5.8

2007

4.4

2003

6.2

1981

7.9

1970

7.0

1976

6.0

1981

6.7

1965

6.1

1978

7.4