2016

6.9

8.1

2011

6.3

2021

6.2

2018

2.2

2005

4.8

2022

8.2

2011

9.0

2017

5.7

2023

10.0

2006

6.5

1988

7.0

2006

6.0

2015

7.4

2005

8.4

1970

6.0

1989

7.0

2008

8.7