2005

5.0

2006

5.4

1999

6.4

1991

6.8

2001

5.1

2000

7.6

1994

1.0

1994

3.0

2008

6.9

1989

5.8

0.0

1995

6.0

1993

6.0

2000

1.0

1998

0.0

1990

7.2

1997

1.0

2004

7.5

1991

6.7

2005

6.2

1990

6.8

1990

0.0