1996

6.0

2002

4.5

1999

0.0

2011

5.5

2004

5.0

1998

2.0

2006

7.1

2005

3.2

1987

5.7

1995

0.0

2005

8.3

2008

2.0

1990

5.8

1985

7.4

2003

3.8

2001

0.0