2020

9.3

2023

9.2

2022

9.9

2012

9.3

2011

7.3

2017

9.5

2021

9.2

2014

6.6

2019

8.7

2007

7.7

1964

7.4

2005

9.7

2008

6.9

1992

5.4

1996

8.0

2009

8.5

2011

6.4

2020

9.4

2009

7.5