2020

9.8

2006

7.9

2018

6.9

2012

7.7

2016

7.6

2007

7.7

2011

6.7

2015

8.1

1994

6.8

2000

6.8

2019

7.5

2020

7.4

1984

7.2

2008

6.5

2019

6.8

2015

8.0

1982

7.1

2016

6.2

2003

6.8

2019

7.6