2006

7.4

2009

2.7

2024

7.1

2017

6.1

2023

6.0

2020

7.7

2008

8.1

2018

7.8

1990

7.4

1999

7.9

2012

6.4

2018

7.7

2018

8.4

2011

8.1

2014

6.5

2013

7.9

2017

5.8

2015

6.0

2015

7.2

2009

8.3