1974

6.3

2019

7.6

2014

5.9

2009

5.4

2011

6.6

2022

6.2

2023

4.7

1975

4.5

2016

6.6

2003

7.1

2015

6.4

2022

6.0

2013

6.7

2013

6.1

1998

5.9

2024

6.2

2012

5.7

1995

7.9

2021

7.1