2020

9.1

2019

7.2

2015

7.9

2017

8.6

2021

6.0

2007

5.0

2023

6.0

1957

5.0

1992

10.0

1988

9.8

7.0

2014

3.6

2018

4.0

2008

3.6

1993

8.0

2022

7.0

1982

6.5

1993

3.7