0.0

2001

7.8

2006

5.2

2011

8.1

2012

7.2

1999

4.7

2005

8.2

2013

8.2

1997

9.7

1997

8.1

2006

4.6

2000

7.6

2004

7.9

2003

5.3

1993

7.1

2011

7.3

1992

2.8

2010

7.8

2006

5.4

2014

4.6

2003

7.0

2004

6.5

1995

7.8

2003

7.6

2009

7.5

2007

6.1

2002

4.9

2008

6.9

2002

4.0

1996

5.7

2005

7.9

2013

7.6

2005

7.2

2008

8.4

2006

7.3

2001

4.3

2002

7.3

2003

5.2