2001

8.5

1997

6.5

2016

7.7

2005

6.3

2000

7.7

2009

8.1

2011

6.2

1998

7.1

1995

8.4

2014

0.0

1996

7.0

2001

0.0

2003

7.6

2019

7.4

2007

6.7

1999

4.8

2001

8.0

2021

1.0

2000

6.7