1976

9.5

2004

7.5

2015

9.2

2016

6.4

2018

10.0

2007

5.3

2006

9.3

2008

4.4

2020

5.0

2023

0.0

2013

8.2

9.0

2012

5.6

1951

6.0

2019

7.6

2024

6.0

2011

9.0