2022

4.5

2021

6.2

5.0

1975

4.5

6.4

1999

9.1

2018

6.3

2004

5.0

2011

7.1

2012

6.4

2012

5.2

2010

7.4

2015

6.4

2006

6.7

2007

8.1

1969

7.7

2014

7.7

2014

7.3

2017

6.0

2013

5.6