2021

6.2

2020

6.0

2006

6.9

1999

6.6

2010

5.5

2018

6.0

1996

7.5

2003

6.1

2004

7.1

2009

5.5

2015

7.0

1975

4.5

2007

8.6

2008

6.8

2022

7.6

6.4

2019

6.1

2022

4.5