From the Light Paper:

As shown in the figure below, each year the efficiency of the LARYNX Miner Tokens drops slightly in order to mimic the relative efficiency improvement to the latest physical mining rigs in the real world. This creates continuous demand for the latest LARYNX tokens, and encourages additional permanent staking into the SIP.

So no idea what the percentage rate of mining deterioration each year.

Posted Using LeoFinance ^Beta