2002

7.1

2004

5.9

1990

7.4

1996

6.6

2009

7.6

2018

6.8

2010

6.5

1964

6.8

2022

7.7

1988

6.0

2019

6.7

2012

6.2

2015

7.2

2006

6.9

2016

6.5

2013

6.7

2005

7.4

2010

5.9

2014

6.3

2016

7.4