1978

6.5

1990

7.3

1972

4.6

1982

4.6

1974

2.0

1972

6.1

1976

4.8

1967

6.1

1979

7.7

1980

5.3

1975

5.5

1978

0.0

1973

7.2

2003

1.0

1997

4.8

1979

5.5

1984

4.7

1976

5.8

1977

0.0

1972

5.2

1982

6.2

1997

1.0

1982

5.2

1988

1.0

1973

7.0

1974

5.1

1975

4.7

1969

1.0

1975

6.0

1978

6.4

1974

4.5

1974

5.0