1974

5.6

1984

6.0

1987

6.5

1993

0.0

1988

0.0

1982

0.0

1980

0.0

1989

6.0

1990

0.0

1983

5.0

1990

0.0

1986

7.4

1991

0.0

1987

0.0

1985

0.0

1983

7.3

2002

5.0

1990

0.0

1987

0.0

1989

0.0

1987

5.0

1989

0.0

1987

0.0

1995

7.0

1993

6.8

1986

0.0

1986

0.0

1989

0.0

1987

0.0

1991

0.0

1984

7.8

1981

0.0

1983

4.5

1980

8.0

1991

0.0

2000

0.0

1985

0.0

1998

0.0

1991

0.0

1984

0.0

1993

0.0

1981

8.0

1995

6.9

1989

0.0

1989

0.0

1983

0.0

1990

0.0

1981

7.0

1961

6.6

1991

7.0

1991

4.3

1990

0.0

1994

0.0

1993

7.0

1993

5.4

1990

0.0

1991

0.0

1999

0.0

1984

7.0

1982

6.0

1989

5.3