2011

5.6

2009

5.9

2017

5.9

5.3

2007

5.7

2025

6.6

2012

6.4

2014

6.9

1966

6.2

2019

6.6

1996

6.6

2022

6.3

2021

5.3

2020

6.7

2023

6.1

1987

6.0

2023

5.9

2007

6.4

2023

6.3

1984

6.2