1985

8.3

1975

7.3

1971

3.5

1981

6.7

1977

6.8

1981

6.5

1983

5.5

1981

8.0

1979

4.8

2008

6.2

1979

4.5

1989

2.0

1980

5.0

1978

7.0

1957

7.7

2025

0.0

1991

5.0

1981

7.3

1987

8.4

1966

6.2

1962

7.8

1977

6.8

1963

5.8

1990

7.4

1974

5.0

1985

5.7

1963

7.8

1981

5.7

2001

3.6

2011

0.0

1990

3.0

1985

5.4

1982

5.5