2005

5.9

2017

4.0

2004

3.8

2008

5.6

2008

5.8

2009

6.6

1995

7.7

2009

3.8

2009

6.3

2008

6.8

2007

6.6

1978

7.5

2008

4.4

2014

5.4

1992

7.0

2020

6.7

1996

0.0

2008

5.0

1985

8.3

2023

7.2