2008

7.4

2007

7.7

2020

9.4

2013

8.1

2019

5.6

2021

7.2

2015

6.3

1996

5.3

2016

7.0

2009

7.9

2007

7.6

2016

4.8

2012

7.2

2010

7.9

2000

6.6

2004

6.6

2002

6.6

2015

5.9

2014

7.8