2008

8.9

2016

7.7

1981

8.0

2023

7.8

2012

8.1

1993

6.6

2005

8.3

2016

8.0

2003

7.6

2003

7.0

2017

8.4

2009

6.1

2010

7.8

2013

8.7

1999

7.4

1998

7.2

2016

8.6

2011

8.1

2016

6.6

1984

6.8