2018

6.1

2010

4.5

1993

6.3

2014

8.5

2009

5.9

0.0

1970

7.1

1997

8.0

2015

4.8

2006

6.4

1994

4.4

2007

7.7

2006

6.2

1992

5.4

2009

6.2

2004

6.0

2020

6.7

2001

7.4

1967

6.5

2007

6.4