Sudden drop in download statistics for addon

The download statistic for our addon shows a sudden drop on June 3rd. Since then it only shows a fraction of previous downloads.

As we forward users to our site after the addon is installed we are pretty certain that downloads didn’t actually got less but that the statistic rather seems to be faulty.

Any advise to what could be the cause of that would be greatly appreciated!

Which add-on are you referring to?

If you look at the statistics for all addons, they are all down by a significant amount. Holiday period?

Late to the party. I though the date of post was for this year.
That aside. The statistics do seem to be lower this year as well. So I would say Holiday seems likely.

That is probably because of this:

https://blog.mozilla.org/addons/2017/06/21/upcoming-changes-usage-statistics/