1963

5.9

6.1

2016

6.0

2013

6.1

2008

6.9

2013

7.9

2025

7.8

2023

6.3

2014

7.6

2001

6.1

2008

5.7

2013

6.1

2003

7.2

2017

10.0

2020

7.0

2015

5.8

2014

5.6