1989

7.0

1981

6.0

1994

8.5

1992

4.2

1980

5.1

1993

4.8

1991

7.6

2006

4.8

1987

5.4

1988

7.1

1990

6.1

1989

5.7

1978

6.0

2016

0.0

1985

6.1

1986

3.5

1984

3.0