2008

7.5

2012

6.8

2020

6.2

2021

6.9

1983

7.9

2015

7.3

2024

6.7

2013

6.9

2002

7.7

2015

6.3

1992

6.2

5.7

2007

6.5

2014

7.5

2017

6.9

2016

7.7

2017

6.1

2011

7.1

2009

5.0

1965

7.0