1990

7.3

1991

6.2

1992

0.0

1999

7.9

2003

4.8

1993

2.8

2005

3.3

2002

5.2

1999

7.4

1989

7.8

2002

3.8

2014

0.0

2002

2.6

2003

2.1

1988

8.3

1997

1.7