2015

5.1

2017

5.9

2016

9.7

1969

6.4

2019

6.8

2017

6.0

2012

6.0

2020

6.3

1990

6.1

1993

5.5

2021

6.4

2016

5.9

2001

4.3

2009

7.5

5.7

1970

7.1

2008

6.1

2017

6.4

2011

5.5