1968

8.1

1972

7.8

1997

7.6

2002

5.9

1995

6.2

2021

4.3

2014

6.5

1997

6.5

1985

7.1

2017

0.0

2009

5.9

2015

8.5

2020

6.0

2010

6.2

2012

0.0

2024

0.0

0.0

2023

10.0

2021

10.0

2018

5.7