1997

6.2

2002

5.6

2011

3.8

2013

0.0

2001

7.2

2008

4.4

1999

5.1

2012

7.6

2007

8.1

2001

4.5

2023

7.2

2016

4.3

2003

4.3

2005

4.6

2019

7.7