2015

7.7

2007

7.2

2011

8.6

2017

8.1

2009

7.4

2019

8.2

1996

8.5

2020

5.8

2005

4.6

1999

8.2

2021

7.6

2019

7.3

1989

8.3

2018

8.1

2013

8.2

2014

8.4

2010

8.2

2017

7.1

2014

8.3

2017

8.3