1983

5.7

1988

4.0

2021

7.0

1976

7.8

2015

6.4

2019

8.1

2015

7.8

2016

5.6

2004

7.9

2018

7.6

2017

6.5

2014

7.4

1991

6.5

2012

5.8

1984

7.7

2019

7.1

1975

7.3

2017

5.7

2017

8.1

2016

8.0