1996

6.4

2012

3.5

1997

8.1

2003

0.0

2003

7.8

2009

6.5

2008

3.8

1998

7.4

1999

8.2

2007

8.2

1999

0.0

2002

4.4

2012

5.5

2002

6.5

2000

5.7

1999

6.5

2002

4.0

2006

4.7

1995

7.1