1981

6.0

1984

6.4

1981

6.2

1973

4.9

1967

6.8

1984

6.7

1972

6.8

1978

6.5

1974

7.3

1984

7.0

1983

6.1

1977

6.8

1974

6.5

1974

5.8

1986

6.3

1980

6.2

1977

6.1

1973

6.3

1978

7.5

1981

6.5

1972

6.2

1973

6.5

1973

6.3

1979

7.0

1977

6.5

1983

6.6

1975

6.0

1978

7.0

1978

6.7

1974

6.3

1982

6.3

1972

6.9

1982

5.4

1967

0.0

1978

6.0

1981

6.2

1981

5.5

1978

6.4

1984

6.7

1977

6.3

1977

6.5

1980

6.7

1973

6.4

1976

6.7

1977

5.9

1983

6.9

1978

5.8

1982

5.0

1965

5.5

1980

6.0

1979

6.5

1981

6.1

1979

6.2

1974

3.5

1976

6.0

1983

5.8

1980

5.5

1985

4.5

1979

6.4

1966

6.3

1983

6.3

1979

6.0

1977

6.0

1982

5.1

1966

0.0

1981

6.4

1976

6.5

1978

6.1

1976

5.8

1971

7.0

1965

5.3

1978

0.0

1979

7.3

1987

5.6

1977

5.2

1965

0.0

1977

6.9

1981

6.4

1980

4.8

1975

6.7

1983

4.5

1982

5.0

1979

6.2

1978

0.0

1968

0.0

1985

3.0

1975

6.0

1979

5.8

1978

6.1

1978

6.5

1980

5.8

1966

6.5

1974

7.0

1979

6.9

1980

7.0

1974

4.8

1973

5.6

1978

7.0

1981

6.7

1976

6.1

1979

6.8

1986

0.0

1979

5.7

1982

5.5

1982

4.0

1981

6.8