1984

7.5

2005

3.6

1999

5.5

2008

5.7

2006

5.6

2023

6.8

2013

6.0

2020

6.2

2016

5.6

2025

4.0

2009

6.2

2018

6.2

1995

6.1

1961

7.5

2017

0.0

2025

0.0

2012

3.1

1988

5.0

2024

6.1

2024

6.0