Inflation rates of crypto currencies II

This is an update on my post inflation rates of crypto currencies.
I added Zcoin and Decred and updated the chart.

Bitcoin / Litecoin
The block reward is constant, but it halves every 210000 blocks (840000 for litecoin).
Monero
The block reward of monero depends on the currently existing amount of coins. It looks like this max(0.6, (2^64 - 1 - already_generated_coins*1000000000000) / 2^19 / 1000000000000)
Zcoin
The block reward is constant, but halves every 420000 blocks.
Decred
The block reward is lowered every 6144 blocks by about 1%. A bit more concretely it looks like that 31.19582664*pow(100/101, int(block_height/6144))

With these facts we can forecast the inflation rates of each currecncy.

inflation rates of crypto currencies

estimated annual inflation rates of crypto currencies

Date Bitcoin Litecoin Monero Zcoin Decred
2019-09-02 3.7% 4.2% 3.7% 31.7% 17%
2020-09-02 1.8% 4% 2.2% 24.1% 12.4%
2021-09-02 1.7% 3.8% 1.3% 10.7% 9.4%
2022-09-02 1.7% 3.7% 0.87% 9.7% 7.3%
2023-09-02 1.7% 1.8% 0.86% 8.8% 5.8%
2025-09-02 0.83% 1.7% 0.85% 3.9% 3.8%
2028-09-02 0.4% 0.83% 0.82% 3.5% 2.1%
2033-09-02 0.2% 0.4% 0.79% 0.81% 0.83%