1998

8.3

2014

7.1

2019

6.7

1961

7.0

2007

7.3

2019

7.4

1978

0.0

2016

6.5

2013

4.2

2001

7.8

2023

5.0

2008

7.5

2005

7.6

2016

6.5

2004

7.4

2007

5.0

1999

6.5

2018

0.0

2013

6.8

2008

7.0