It’s sales figures from independent retailers  only, excluding direct sales (i.e. anything directly through a company’s own webstore or physical stores).  I can’t see Legion being anything near 40k, however 40k being top isn’t in anyway a surprise.  Age of Sigmar being second is definitely a surprise and speaks of a level of popularity that has perhaps been under appreciated.

X-Wing slipping to 4 is definitely a surprise – I wonder how much that has to do with the migration to v2.0 and the reaction to the lack of compatibility between the two versions and the costs of upgrading large collections.

Star Wars Legion being 5th is definitely a surprise because the general opinion I have seen online is mostly indifference due to slow release schedule and a general dearth in the variety of units available.  Next year will definitely be more interesting for Legion if they’re going to get some vehicles on the table.

But as I said, I think the biggest surprise is by far that Nolzur’s Marvellous Miniatures are third place.  This is a range that doesn’t really have a large Wargame behind it like 40k and although it is tied to D&D, that’s not a game I would have considered a great sales vehicle for miniatures.  Although you can use miniatures with it, how many do you really need as a GM?  I think this speaks of both a significant resurgence in D&D (and RPGs in general) but also to people’s desire to use miniatures in their RPGs.

I think aside from 1st place this is the most interesting set of results we have seen for some time.