2016

7.6

2006

7.4

2003

7.5

2013

8.1

2000

6.9

2004

8.1

2009

7.2

1990

7.9

1988

8.1

2015

7.1

2005

7.6

2016

7.8

2022

8.4

2008

7.6

1998

7.2

2008

7.8

2009

7.4

2012

6.4

2001

8.0

2015

6.9