1984

7.1

2013

8.3

1944

6.0

1970

6.3

2017

6.9

2016

4.9

2006

7.2

1947

7.5

1941

7.3

1989

6.5

1986

5.6

2014

6.2

2020

7.1

1995

6.8

2015

5.7

2011

7.2

1990

6.4

2001

8.9

2008

6.4

1983

6.7