2005

4.0

2020

3.8

2021

6.4

2019

5.0

1978

5.6

2008

6.7

1974

6.9

2017

7.2

1971

6.9

2005

5.7

2023

6.7

2015

7.5

0.0

2022

0.0

0.0

2018

6.5

1972

8.1

2021

0.0

2018

0.0

1991

6.7