Miner revenue per Exahash is a metric for estimating daily miner incomes, relative to their estimated contribution to network hash-power. It is calculated by taking the ratio between total USD or BTC denominated miner income (subsidy and fees), and dividing by the current hash-rate (in EH/s).
Data is presented in daily resolution, and thus traces display the daily revenue per 1 EH/s of hashpower a miner provides to the network.