2018

8.2

2009

6.6

2012

7.0

1997

5.8

1997

3.2

2003

0.0

2006

4.1

2005

8.2

2015

7.9

2009

8.0

1994

7.2

2002

7.7

2006

7.4

1985

5.5

1995

3.0

2000

7.4

2009

6.8

2004

5.6

2010

4.4

2016

7.3

2007

7.5

1988

5.0

1993

8.4

1996

6.9

1988

5.6

1989

6.5

1989

5.5

2003

7.6

2009

7.5

1993

7.0

1998

6.8

2002

7.4

2016

7.2

2001

6.4

1989

5.8

2005

7.9

1984

7.0

2000

6.8

2008

8.4

1995

7.7

2018

8.5

2009

6.6

2011

7.2

1989

7.3

2003

5.0