1996

5.7

1993

8.2

1998

6.0

2005

2.4

1996

6.3

2001

2.2

2001

3.0

1991

0.0

2003

3.6

1999

4.2

1997

4.8

1995

7.6

1996

5.0

2000

7.1

1997

5.7

1998

7.2

1994

6.7

1997

6.0