1977

5.0

1996

6.9

1992

3.5

1982

1.0

1977

0.0

1982

5.6

1976

3.2

2001

6.0

1977

6.0

1985

6.2

1993

6.1

1989

6.6

1986

6.5

1989

6.5

1978

6.8

1988

0.0

1982

0.0