1987

6.9

2022

7.3

2022

6.2

2020

7.3

2010

6.8

1992

6.5

2017

7.3

1995

6.1

2009

6.6

2011

7.5

2012

6.0

2021

6.3

2023

6.4

2024

7.0

2013

6.9

7.5

2019

7.1

2007

6.1

2014

4.5

1977

6.7