1998

7.1

2010

8.0

2012

6.3

2014

7.2

1990

7.7

2019

7.9

2015

5.3

2024

8.0

2023

8.1

2017

8.3

2004

7.9

2004

7.6

2016

6.6

2001

7.8

2002

7.9

2009

7.1

2019

7.1

1981

8.0

2002

8.5

2005

7.2