Data in the colored area represent future predictions assuming stable block times and not considering burn mechanics.
Burning metrics represent the collateral lost by hosts after failed contracts, and do not consider Proof of Burn mechanics for hosts, yet to be implemented in a future update.
When renters and hosts sign a file contract to store data, both of them lock coins for the duration of the contract, becoming
unavailable for any other use. This is represented on the chart "% Supply locked in file contracts".