2021

6.5

2015

7.8

2017

7.9

2014

7.4

1984

7.5

2016

7.8

2015

7.7

1971

8.1

2013

7.8

1995

7.8

1984

7.7

2022

7.9

2009

7.3

2013

7.8

2016

7.7

2013

6.7

1999

7.9

2019

8.6

2013

8.0

2005

8.3