1985

6.5

1978

5.0

1988

6.0

1987

6.8

1998

0.0

2014

7.8

1988

4.0

1992

7.0

1986

0.0

1992

5.0

1978

0.0

1989

5.2

2003

6.7

1986

6.1

1982

5.7

1990

5.7

1999

7.2

1988

6.8