1998

6.8

1975

6.9

1973

6.3

1982

5.5

1978

2.0

1976

4.1

1979

7.3

1979

6.2

1992

7.2

1971

6.6

1979

6.7

1983

5.7

1972

6.7

1972

5.6

2001

3.0

1968

6.3

1972

6.6

1969

7.1

1993

7.4

1993

5.0

1982

5.2

1976

6.5

1980

4.8

1967

0.0

1972

6.9

1982

6.8

1970

5.0

1996

0.0

1973

5.6

1991

7.2

1992

7.1

1969

6.6

1992

7.1

1983

0.0

1974

5.8

1999

0.0

1993

6.0

1984

6.0

1993

6.4

1977

5.1

1972

5.6

1971

5.8

1967

6.5

1976

5.0

1972

6.8

1970

6.3

1977

6.0

1974

0.0

1971

6.0

1972

6.2

1973

6.7

1971

6.9

1973

0.0

1969

5.9

1970

6.7

1993

6.6

1993

0.0

1969

6.6

1977

6.1

1975

0.0

1974

5.9

1992

6.5

1966

6.5

1980

5.9

1971

6.8

1976

5.3

1967

6.8

1974

6.3

1969

4.0

1975

6.7

1979

4.1

1974

5.3

1975

6.0

1968

5.9

1972

6.7

1976

6.4

1975

6.2

1986

8.0

1972

5.8

1992

6.2

1970

6.2

1993

0.0