1996

4.6

1996

2.2

2001

4.0

1990

7.8

1993

7.1

1991

6.2

2003

3.0

1985

7.5

1987

6.9

1987

4.2

1997

10.0

1986

4.7

1988

5.3

1991

6.1

1989

8.0

1992

6.7

0.0

2001

5.4

1990

7.9

2008

8.4

1996

7.4

1992

5.7

1994

4.9