2009

8.5

2013

6.5

2010

7.4

2012

5.4

2004

9.9

1972

10.0

8.0

0.0

2019

6.0

2017

6.6

2020

9.1

2007

10.0

2018

6.7

2016

7.3

2009

6.7

2003

8.6

1995

7.3

2000

6.2

2016

7.4

2015

6.0