2018

6.0

2015

7.4

2008

8.0

1963

7.6

1974

7.0

5.7

2014

7.3

1980

5.2

2013

6.6

1994

7.5

1998

5.9

2014

3.7

1991

6.9

2009

6.8

2020

7.3

2014

5.8

2013

6.0

2015

7.2

2016

7.0