1968

6.4

2015

7.4

2023

6.5

2009

8.5

2017

4.7

2012

5.1

2013

6.1

2014

5.6

2010

6.3

2001

5.9

2022

10.0

2018

7.2

2017

5.0

2016

6.3

2004

7.3

2018

6.9

2015

4.5

7.8