1999

4.7

1995

6.8

2006

9.0

2004

6.1

2013

7.4

2004

0.0

2007

7.2

2015

5.8

2000

7.9

2012

7.1

2004

7.1

2019

7.7

2015

6.1

2020

8.0

2002

0.0

2016

6.5

2014

8.1

2010

8.3

2006

7.6

2021

8.0