2003

6.9

2004

4.8

2014

7.8

2005

6.5

2004

6.1

1985

8.0

2007

6.5

2005

6.8

2005

6.1

2003

7.1

1989

6.7

1990

6.3

2004

6.3

2008

4.8

2007

7.6

2006

6.6

2013

0.0

2014

6.0

1999

7.2

1951

6.1