2016

6.5

2004

6.8

2005

6.6

2020

7.1

2017

8.0

2017

7.3

2015

7.6

2018

7.4

2010

8.2

2019

7.8

2014

8.5

1968

8.1

1994

8.5

2016

7.9

1997

7.9

1995

7.2

2016

7.3

2018

7.4

2016

6.7

2016

7.0