1985

7.5

2005

5.2

2001

6.4

2015

5.8

2018

0.0

1996

9.0

2010

10.0

1992

6.7

1998

6.8

2016

0.0

2017

0.0

2013

7.2

2020

0.0

1983

7.3

1983

7.7

2018

7.8

1996

8.1

2003

7.5

2011

4.0

2012

8.0