2010

7.8

2012

7.4

2014

8.3

2003

8.0

2011

8.2

1972

7.9

2005

7.5

2006

7.8

2006

7.4

2023

7.7

2004

8.1

1984

7.8

2009

7.6

2019

8.7

1975

7.0

1984

8.3

2016

7.7

2019

7.8

1989

7.7

2015

8.0