Subsidy vs Fees
The two parts of what a miner collects, averaged per block over each day: the subsidy, which halves on a fixed schedule, and fees, which do not
Short ranges plot one point per block, about one every ten minutes. Longer ranges plot one point per day, computed from every block in that day. How it is computed depends on the chart: some average, some total the day up, some are a ratio of the day's sums, and each chart says which. Either way a brief spike inside a day is smoothed away.
About this metric
Definition
The two halves of what a miner collects for a block. The subsidy is new bitcoin the protocol creates, currently 3.125 BTC and halving every 210,000 blocks. The fees are what senders paid for space. Only the first is on a schedule.
How it is measured
The block subsidy (new BTC created) halves every 210,000 blocks (~4 years). After the 2024 halving, the subsidy is 3.125 BTC per block. The subsidy schedule is fixed by the protocol; the fee side is not. Fees are a larger share of revenue when they hold up as the subsidy falls, and a smaller one when they fall faster, so the balance between the two is an outcome to watch rather than a guarantee.
Measured from my own Bitcoin node. Methodology