A wonderful resource that earlier used to exist for researching global Internet speed and quality was Ookla's NetIndex. Ookla has discontinued public download, I believe since 2015. Does anyone have a dump of the last publicly available source data?
After a quick check, one of the latest snapshots with a still-active bulk download seems to be from late 2014 or 2013
Unfortunately, it seems there is no quick-fix because the downloads weren't archived. In the source code, you can see one page
that has a link to the Google Public Data site, but no luck