1985

6.7

1987

6.0

1963

7.9

1977

7.2

1972

6.3

1992

0.0

1997

5.9

1991

8.0

1980

5.0

1985

5.6

1980

0.0

1997

3.8

1980

5.4

1978

7.0

1985

6.4

2003

7.4

1977

7.5

2000

5.5

2012

5.3

1981

8.0

1981

6.4

1986

0.0

1973

5.5

1991

0.0

1991

8.0