Source data: http://data.uis.unesco.org/

Statistical data: varies by country, from 2016 to 2022.

Statistical adjustment: i used the average of the last 2 years data for each country, because i have seen that the number of teachers and students can vary easily 5-10% from one year to another, sometimes up and sometimes down.

Software: LibreOffice Calc

Interesting, though Students/Teacher is generally the metric used which would have also probably made this easier to read

Yes. In fact, i thought about it... but i preferred a metric of the type: more is better. So, more teachers per student are a better thing. It's more intuitive.

I know that the usual metric is what you mentioned. Thanks anyway to note it 😀

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That’s the way to go! Keep on doing what you are doing. Your mistakes are your guide and not your failures.