2002

6.9

1979

6.5

2006

7.9

2007

8.5

2018

7.3

2019

8.6

2009

8.7

2008

8.4

1996

7.7

2012

6.8

2021

8.5

2000

7.9

2016

8.4

2013

8.1

2004

8.3

2014

7.6

2008

7.6

2015

8.1

2015

7.6

2004

8.4