1979

6.8

2006

8.6

2002

7.5

2015

8.7

2018

8.2

2009

5.8

2024

7.3

2006

8.2

2005

8.3

1973

8.1

1975

8.2

2015

8.2

2010

7.8

2017

8.4

2022

7.5

2004

7.3

2013

7.5

2014

7.9

2016

7.5

2024

6.4