1985

4.0

1997

4.6

1985

5.3

1987

6.8

2017

7.4

1975

6.2

1976

7.3

1999

4.9

1979

3.5

1976

5.2

1983

7.0

1986

7.1

1985

4.6

1991

6.2

1981

5.7

1994

4.8

1992

4.1

1976

5.3

1980

0.0

1981

5.0

1981

5.0

2004

7.5

1984

8.0

1979

4.1