Leaderboard with all-time stats?

Hi,

I've just rejoined ROBLOX from a long time inactive and noticed everything is done a lot differently.

Just a quick question really, how would I go about making a leaderboard system that shows an all-time score including every player that has played the game, essentially ranking top-to-bottom all-time.

I only need a little advice on functions and where to look on the Wiki.

Please point me in the right direction.

Thanks,