1989

2.0

2008

0.0

1996

5.7

2006

2.5

1988

6.9

1994

7.8

2012

5.0

1998

5.1

2002

6.2

2001

6.3

2004

5.2

2003

6.8

2001

6.0

2005

8.1

2011

4.9

1998

4.2

1997

0.0

2005

6.1

2000

4.1

1987

6.0