2006

6.4

2012

6.8

2005

6.2

2007

4.6

2003

4.3

2012

6.5

2008

4.5

2000

5.3

1997

6.7

1996

3.8

2017

6.5

1996

6.2

1996

3.4

2013

7.1

2010

7.7

2008

5.4

2001

6.5

1999

6.7

2002

2.5

1999

6.1

2015

8.1

2008

6.2

2022

6.4

2005

6.1

2016

7.0

2005

6.3

2018

7.9

2001

6.6

2002

5.9

1998

4.1

2003

6.5

2009

7.7

2019

8.0