You should be knowing that in this 85% only some 20 or 30% is in circulation and balance are locked by investors for long term and most of them have lost their private keys when the price was very low in the starting time. So this is why market is moving with less bitcoin available and 2020 halving make miner reward half so after halving they will receive only half quantity btc which will force the price to move up due to demand in supply.