1997

8.1

1996

7.5

2007

6.5

1999

8.5

2007

6.2

2005

7.4

2008

8.3

2014

7.9

2013

4.5

1998

7.0

2005

8.8

2004

7.3

2006

0.0

1997

5.0

2023

6.7

2001

7.6

2021

8.4

2012

8.6

2012

8.3

2009

7.5