We just hit and crossed 20,000 blocks so we should know be getting the full emission rate of 12.5 ZEC per block.
This should hopefully reflect in the mining rewards
https://i.imgsafe.org/031f0694af.jpg
after that DEV reward of Zcash is 0% This should hopefully reflect in the mining rewards
https://i.imgsafe.org/031f0694af.jpg
I thougt 20% dev reward is until first halvening in 4 years?