2003

6.3

2009

6.5

2014

6.9

2006

5.9

2009

7.1

2011

6.6

1999

7.2

2025

7.8

1965

5.5

2011

5.5

2010

7.0

2021

6.2

6.4

2023

9.2

2010

6.4

2017

6.6

2019

6.5

1990

4.4

2021

6.2

1994

6.2