2018

6.0

2021

7.7

1990

6.4

2010

6.8

2005

5.8

2012

7.1

2012

5.6

2020

6.3

2011

9.5

1992

6.3

2006

6.4

2012

7.7

1977

5.2

2013

8.3

1987

6.9

2015

6.8

2016

6.3

1994

7.3

2017

5.9

2021

8.4