Pool saturation is measured against the 'k' value. Pools that are over-saturated will not earn as high rewards as unsaturated pools. (k value coming soon)
RETURN ON STAKE
Generally, pools with very high roi have minted blocks against all expectations. The opposite is true for pools that have underperformed. This should average out over the year.
Total number of blocks minted by the pool since it was created, or since the shelley fork. (epoch data coming...)
BLOCKS THIS EPOCH