2008

5.5

2013

6.0

2003

0.0

2002

0.0

2006

5.2

2000

7.2

2012

6.0

1995

0.0

1994

7.0

2011

10.0

2015

2.0

1970

6.2

2009

0.0

2004

6.1

2012

8.0

1992

3.4