2018

7.5

2013

8.1

1998

7.2

2006

6.5

1998

5.6

2002

2.0

2009

4.8

2017

5.5

2004

0.0

2007

6.2

1996

7.7

2015

5.5

2009

5.8

2003

2.0

2005

8.3

2002

7.2

2011

6.3

2001

6.3

1995

7.8

2000

5.0