2004

7.2

2009

8.3

2013

6.5

2016

7.6

2010

6.7

2005

7.9

1992

6.8

2010

8.1

2018

6.9

1987

7.2

2011

7.2

1993

6.8

1999

10.0

2022

5.8

2009

6.1

2014

6.4

2017

6.6

2016

7.1

1988

8.3

1993

8.1