Total circulating Bitcoin (BTC) hit a significant milestone on Monday morning, one and a half years after the last Bitcoin halving, as 90% of the maximum total supply has been mined.
Current data from Blockchain.com shows Bitcoin in circulation hit 18.899 million as of Monday, meaning only 10% of the total supply is left to mine. While the first 90% of BTC took about 12 years to mine, the rest will take a little longer.