What is the meaning of the green square with the ✔ sign?

[abysss24]

So on the user maps list in game, more precisely on the right, there are a couple of signs for each map's row, they go like this Like/Dislike favourite (star) and then there is it's a green square with the white check mark symbol "✔" with a number above, what does it mean? Is it how many people finished it?

[NC]

number of dl's

[abysss24]

oh I see, thanks!