2013

6.7

2002

6.2

2007

6.5

2006

5.5

2006

6.3

1985

8.3

1978

7.5

1995

7.7

2017

3.4

2010

4.6

2006

2.0

2005

5.9

1998

7.3

2017

6.2

2016

6.5

2006

7.6

2021

6.8

2008

5.0

2008

5.6

2013

5.8