2015

8.7

2012

8.4

1993

5.0

2013

8.1

2020

6.9

2011

7.6

2020

7.6

2007

5.4

2009

8.3

2010

7.7

2004

5.9

2013

7.7

2014

7.3

1989

8.0

2021

7.5

2023

6.7

2016

8.0

2004

7.0

2022

6.8

2005

7.8