1977

7.2

1991

3.0

1981

3.9

1984

6.4

1985

5.6

1979

5.4

1975

0.0

1978

7.2

2016

7.1

1990

0.0

1982

7.0

1978

7.0

1993

3.5

1977

7.6

1983

6.0

1986

5.8

1984

7.0

1980

7.0

1982

5.8

1987

7.5

1989

5.8

1992

8.0