1988

7.4

1993

3.5

1987

4.5

2016

5.9

1997

0.0

2020

4.4

2019

6.0

1999

7.3

2006

8.0

1985

4.1

1985

7.4

2006

5.3

2004

5.5

2013

0.0

2008

7.6

1988

6.6

2016

0.0

2017

8.0

2012

0.0

2005

5.1