1984

7.8

1979

8.0

1984

5.0

1979

7.3

1989

0.0

1981

6.5

1981

6.6

1975

7.2

1986

5.5

1985

4.0

1982

7.6

1979

7.1

1972

6.0

1977

5.2

1989

5.7

1978

6.8

1981

0.0

1990

7.4