2017

6.1

1996

5.8

2009

8.7

1976

4.8

2020

7.0

1993

6.3

2023

7.2

1990

6.0

2001

7.4

2013

6.1

2014

9.7

2006

5.1

2018

6.0

2020

5.3

2003

5.0

2012

6.3

2011

7.1