2006

5.3

2001

4.9

2009

5.4

1985

5.3

1999

8.0

1973

0.0

1987

9.0

1994

5.4

1976

2.0

1974

5.4

1998

5.0

2005

7.9

1970

0.0

1977

4.5

2023

8.0

2013

5.2