1987

7.0

1998

4.7

2007

0.0

1991

0.0

2013

8.5

2011

10.0

1992

4.5

1994

9.0

2006

6.0

2015

10.0

2004

0.0

2012

0.0

2005

0.0

2003

6.0

2000

0.0

2008

0.0

1981

7.0

2013

0.0

1982

0.0

1983

0.0