Why does this say that the "survived" stat is 0 even though it isn't?

I have this function that runs in a 60 second loop in a script in game.Workspace. But instead of printing the value of "survived", it prints "0". Does anybody know what I have done wrong?

function difficultyincrease()
    local players = game.Players:GetChildren()
    for i = 1, #players do
        local player = players[i]
        if player.leaderstats.Survived.Value > 10 then
            print(player.Name)
        else
            print(player.leaderstats.Survived.Value)
        end
    end
end