1969

7.1

1969

6.6

1977

5.5

1984

6.7

1972

6.8

1978

6.5

1971

5.8

1974

5.8

1971

6.0

1970

6.7

1974

5.9

1973

6.3

1974

6.5

1975

6.9

1972

6.7

1972

5.6

1972

6.2

1974

5.5

1979

7.0

1977

6.5

1983

6.6

1978

7.0

1976

6.4

1982

6.3

1972

6.9

1978

6.4

1978

6.2

1983

5.0

1978

7.4

1979

6.3

1973

4.0

1979

6.7

1970

6.2

1977

6.5

1983

6.1

1973

0.0

1972

5.8

1971

6.9

1969

4.0

1972

6.7

1976

6.7

1977

5.9

1966

0.0

1983

5.0

1970

6.9

1973

6.3

1982

6.7

1972

5.7

1973

6.7

1971

6.6

1980

5.5

1979

6.4

1971

6.8

1967

5.8

1970

5.0

1981

5.7

1976

4.1

1977

6.0

1978

6.4

1974

4.0

1976

5.3

1976

6.5

1976

7.0

1982

6.0

1977

5.2

1977

6.9

1971

0.0

1978

6.8

1979

6.2

1984

6.3

1975

0.0

1978

6.1

1967

0.0

1978

5.7

1980

7.1

1980

5.8

1970

6.5

1966

6.5

1968

6.3

1984

5.8

1969

6.6

1977

1.0

1978

7.0

1981

6.7

1971

0.0

1969

5.9

1976

6.1

1981

7.0

1970

6.3