2006

5.0

1985

0.0

1970

4.3

1979

5.4

1987

3.3

1995

6.6

1975

6.0

1972

4.0

1983

0.0

2017

6.7

2013

6.4

2010

6.7

2000

0.0

1995

8.5

1994

5.5