2015

7.4

2007

6.9

2017

7.8

2006

7.3

2017

6.5

2023

9.7

1997

7.5

2007

7.5

2005

7.9

2015

7.6

2006

7.4

2020

9.3

1994

7.2

2014

7.1

2022

6.7

1967

7.7

2008

7.8

2004

7.6

2016

7.0

2010

7.8