1987

6.9

1968

7.1

1972

0.0

1973

6.7

1967

6.8

1965

7.6

1965

7.8

1969

6.5

1982

5.2

1960

6.4

1971

5.5

1981

0.0

1963

5.8

1973

7.0

1966

8.1

1966

6.1

1972

5.0

1974

7.4

1973

6.8