1996

6.4

2018

8.2

1979

5.5

1978

7.1

1996

5.6

1979

6.9

1981

0.0

1980

6.1

1979

4.8

1994

4.0

1979

6.8

1973

7.0

2009

7.5

2001

8.0

1990

8.0

1983

7.5

1979

4.7

1982

4.5

1974

7.2

1995

6.1

1978

4.2