2011

6.3

2002

6.0

1988

0.0

2006

5.9

2004

9.0

2003

5.2

2005

5.5

2008

0.0

1989

0.0

1994

9.0

2005

0.0

2000

6.7

1985

5.2

1983

0.0

2005

6.8

2009

5.6

1999

6.2