1999

7.9

1994

8.0

1996

6.6

2002

6.0

2003

6.7

2004

3.5

2002

7.7

2004

7.4

1998

5.4

2000

8.5

2001

0.0

2001

4.0

1996

7.0

2006

8.2

1999

6.5