Sum of values of UTXO elements with the fixed script output type. At height 968352 we have that circulating supply = 20088373.00353661 =
2627.60554597[nonstandard] +
1714619.04806432[pubkey] +
4553148.82527571[pubkeyhash] +
3815030.37680339[scripthash] +
60.17773941[multisig] +
8256157.83469925[witness_v0_keyhash] +
1528752.70185506[witness_v0_scripthash] +
217975.90071987[witness_v1_taproot] +
0.53283363[witness_unknown].