1983

7.9

1971

6.0

1972

0.0

1984

7.4

1997

5.8

1971

7.3

2008

7.0

1967

7.0

1962

7.0

1977

8.3

1961

7.7

1968

6.1

1971

7.6

1962

7.3

1970

7.6