1951

5.8

1975

8.4

2005

5.5

2005

8.3

2017

6.8

2020

3.9

2016

0.0

2006

4.0

2022

2.0

2021

0.0

2024

10.0

2003

6.5

2001

6.4

1971

5.5

1983

6.5