New feature when checking your own maps

[AlienKiLLer0015]

Has anyone noticed this?
http://prntscr.com/hbcnkn

Is this feature showing how many users played this map since june 2017?Or total playthroughs(for example one user played this map 9 times,another 6 times and so on).
If this is what i think it is,it makes me trully happy knowing that people still play my silly maps,especially my very first ones,which have around 50 plays since june 2017.

*nostalgia intensifies*

[AI Robot]

Its been there for like half a year now.