2007

6.2

1997

8.1

2012

8.5

2017

10.0

2005

7.4

2017

6.4

1969

4.0

2016

4.3

2013

4.5

1998

7.1

2023

6.7

1995

7.3

2009

7.5

2018

3.0

2022

7.8

2020

8.4

2023

6.9

2014

6.9

2019

8.0

2014

7.8