2006

6.3

2023

7.2

1982

6.5

1977

5.3

1998

6.3

2009

5.6

2007

5.6

1996

0.0

2004

5.6

1976

4.9

1984

8.0

2004

4.2

2019

6.9

2010

4.3

1965

4.5

1971

4.0

1969

3.0

1974

4.9

2011

5.0

2013

5.8