api.wordpress.org: not all plugins with a certain active install count appear

[yenedemet]

When querying api.wordpress.org with the query_plugins action ​using this link, it seems that not all plugins with a certain active install count appear in the results.

This occurs when accessing the last page of the results, which is obtained from the below “pages” variable:

With the per_page variable set to 10, the last plugin in the results has an active install count of 400:

As a result, it looks like plugins with an active install count smaller than 400 don’t appear in the results.

What could cause the previously mentioned plugins to not appear in the results when querying api.wordpress.org using the query_plugins action?

[Otto42]

The plugins are not ordered by active install count. They are not guaranteed to appear highest first.

[yenedemet]

By which field are the plugins ordered?

[yenedemet]

In the below image, the results are filtered to show the plugins from the first page on api.wordpress.org. This shows that the results are sorted by the active install count in descending order: