1971

5.7

1979

8.2

1981

0.0

1984

7.2

1965

5.9

1990

6.5

1973

7.0

1968

0.0

1992

6.3

1994

8.3

1977

3.0

1977

0.0

1991

8.5

1981

6.3

1994

0.0

1973

5.5

1982

2.5

1991

5.9

1972

6.0

1992

1.0