1969

5.5

2016

6.3

2014

6.5

2008

10.0

2009

7.1

1982

6.2

2017

5.2

2014

6.0

2004

7.2

2006

7.0

2002

6.9

2004

7.5

1991

7.1

1945

8.1

1992

6.6

1997

6.6

2018

8.0

2013

4.0

2020

0.0

2015

7.0