2016

9.3

2014

7.7

2013

6.7

2025

10.0

2004

7.2

2009

6.3

2006

7.5

2023

9.8

2018

7.1

2016

7.8

2012

8.2

2015

8.0

2008

8.3

2019

6.8

1997

6.9

1978

7.3

2001

7.6

2002

7.5

2010

6.7

2024

9.1