1993

7.1

2019

7.1

2013

7.3

2004

7.2

2000

7.9

2016

8.0

1994

8.5

2005

8.2

1991

7.6

1984

7.1

2017

7.5

2011

6.4

2014

8.3

2018

8.3

2008

8.2

2018

7.3

2020

6.4

2007

6.7

2016

8.0

2018

8.0