How would I made a part that shows a number, save when leaving and rejoining?

I have a brick in my place that shows the amount of times people have died, but this resets when nobody is in the game. How would I be able to make this number save?

1	game.Players.PlayerAdded:Connect(function(plr)
2	    plr.CharacterRemoving:Connect(function() 
3	        script.Parent.Text = tonumber(script.Parent.Text)+1
4	    end)
5	end)

This is the working code that I already have. Just need to be able to save the number that it puts on the sign.