2001

3.6

2012

6.6

1982

6.2

2001

6.0

2003

6.2

2013

0.0

1999

7.0

2004

0.0

2012

0.0

1989

0.0

2009

9.0

1998

5.1

1988

5.0

1996

5.6

1992

6.7

1998

5.0