1986

7.1

1972

4.9

1973

3.3

1979

7.5

1977

5.0

1971

0.0

1987

6.0

1986

7.3

1973

4.8

1967

7.0

1973

6.1

1979

5.2

1984

6.7

1978

6.7

1969

6.5