2001

9.9

2020

7.4

2014

6.9

1955

7.1

1998

7.0

2006

6.0

2011

5.9

2010

7.2

2015

5.1

2011

6.2

2005

6.8

2004

6.0

2020

6.2

2016

7.2

1988

6.1

2011

7.1

2013

6.4

2022

5.4

6.4

2012

6.3