80% of All Bitcoins Issued
January 14, 2018
About 17 million bitcoins have been mined so far which amounts to 80% of all bitcoins that actually can be mined. Considering the reductions of payoffs per block miners all over the world can obtain not more than 21 million bitcoins.
During the first minings they received 50 BTC per block but its cost constantly declines twice every 210 000 blocks. 99% of all blocks which makes about 20 790 000 bitcoins are expected to be mined after 2030.
Mining steadily causes power costs increase as every 2016 blocks make the process more complex.