2010

8.1

2015

8.3

2003

7.2

2012

6.9

1990

7.4

2016

7.6

2004

8.0

2016

6.0

2013

7.3

2015

7.3

2007

8.2

2019

8.9

2018

7.4

2000

8.1

2013

8.0

1973

8.0

2021

7.2

2007

6.5

1995

9.5