Assuming the data is accurate, it would seem antibiotic use (not sure how that compares with antimicrobials in general) is not particularly low compare to other countries.

From the cited paper itself:

> The top 5 consumers in 2020 were China, Brazil, India, USA, and Australia

But also:

> In contrast, Australia now also appears among the top 5 –however, in the absence of any public report of AMU since 2010 [29], usage for Australia was obtained through extrapolation, as with other countries that do not report data. Therefore, predictions may not accurately reflect the current country efforts to reduce AMU.

So it's not clear if the data actually is accurate (and the paper really is about how accurate data is missing for many countries).