2006

0.0

2007

7.9

2005

8.1

1986

8.4

2008

8.2

2003

5.0

1992

8.3

2009

8.0

1999

8.6

1990

0.0

1991

5.5

1994

2.0

1995

0.0

2014

0.0

1993

8.5

2001

6.4

2005

2.5

2000

5.2

2004

4.8

2004

7.0