What is the total supply of Augur?

Can you tell me, what exactly is the total supply of Augur? As an investor in the cryptocurrency space, I'm always interested in understanding the scarcity factor of various digital assets. So, is there a specific number of Augur tokens that will ever be in circulation, or is there a mechanism in place that will allow for an increase in the supply over time? I'd appreciate any insights you can provide on this matter.