What is the circulating supply of Bittensor?

Could you kindly explain to me, in a straightforward manner, what exactly the circulating supply of Bittensor entails? I'm quite interested in understanding how this metric affects the overall value and liquidity of the cryptocurrency. Could you also elaborate on how it differs from the total supply and how it's calculated? It would be greatly appreciated if you could provide some insights into the factors that influence the circulating supply and how investors can utilize this information in their decision-making process. Thank you for your time and assistance.