1972

6.1

2012

8.4

2013

8.1

2022

7.2

2017

6.2

2001

7.2

2019

8.5

1999

7.4

2019

6.6

2007

7.6

2009

6.7

2020

6.9

2005

7.0

2011

7.2

2008

8.5

2003

7.3

2005

8.3

2020

8.1

2010

8.0

2023

8.1