How can I save and load point stats?

I need help with saving a point system and it loading when someone rejoins. Here's what I'm using to add 1 point every 10 seconds:

amount = 1
timedelay = 10
currencyname = "Points"

while true do
    wait(timedelay)
    for i,v in pairs(game.Players:GetPlayers()) do
        if v:FindFirstChild("leaderstats") and v then
            v.leaderstats[currencyname].Value = v.leaderstats[currencyname].Value + amount
        end
    end
end