2001

3.4

2012

6.8

1982

6.3

2001

6.0

2003

6.2

2013

0.0

1999

7.0

2004

0.0

2012

6.0

1989

0.0

2009

9.0

1998

4.9

1988

5.0

1996

5.3

1992

6.6

1998

5.0