$BTC

The total number of bitcoins that can be mined is limited to 21 million coins. As of today, about 19 million bitcoins have already been mined, and the mining of the remaining 2 million will proceed significantly slower, with the last block expected to be mined no earlier than the year 2140. According to available information, about 20% of bitcoins have likely been lost due to the loss of private keys, while 18-19% are in active circulation, and the rest are held by long-term investors.