2004

7.9

2015

7.7

2003

8.2

2010

6.8

2007

7.6

2023

9.7

2018

7.0

2023

2.7

7.2

1966

8.0

2004

7.6

2014

7.9

2011

7.3

2012

7.5

2020

7.1

1993

7.9

2014

8.3

1991

7.7

2016

7.0

2015

7.8