2006

5.9

2014

6.4

2006

6.2

2007

5.4

1996

0.0

1989

6.0

2004

3.5

1977

5.3

2004

3.5

1976

5.7

1999

4.1

2001

7.0

2004

2.0

2014

5.2

2009

5.6

1998

6.3

1985

0.0

1969

2.3

2008

6.8

2002

6.2