This is maximal parking rates now. Reduction of parking payments and adaptation of interests to the base rate are aimed to achieve goals outlined in the second Memorandum, namely the sustainable planned growth of the MNX price of 84.88% per annum. Check it, please: https://medium.com/minecoin-blog/mnx-market-behaviour-update-6a1e32014233
Why are the quarterly and half-year rates currently above 84.88% per annum, though? Is 84.88% just a weighted average of all term periods?