2005

5.4

2003

6.7

1981

4.3

2003

0.0

2006

0.0

2003

6.0

2002

1.0

2006

6.0

2012

5.6

2003

0.0

1997

0.0

2002

5.9

2008

5.1

1971

6.4

1970

6.1

2005

6.1

1995

4.6