2005

5.5

2009

5.7

2017

6.0

2004

6.1

2007

4.7

1998

8.7

1988

5.7

2013

4.0

2017

6.4

2003

6.0

2024

6.6

2019

6.7

2024

7.4

2020

6.2

2011

5.0

2015

6.1

2023

5.7

2001

9.9