2013

7.0

1984

7.5

2005

6.7

2010

8.4

2015

7.8

2009

7.2

2015

7.5

2003

7.4

1989

6.6

2012

7.7

2014

7.9

2015

6.8

1971

8.2

2019

8.1

2013

7.8

2015

7.6

2013

6.9

1977

7.3

2016

5.3

2013

8.1