Sum of values of UTXO elements with the fixed script output type. At height 968500 we have that circulating supply = 20088835.50289573 =
2627.60554597[nonstandard] +
1714619.04806432[pubkey] +
4548165.23352839[pubkeyhash] +
3815651.96247285[scripthash] +
60.17643741[multisig] +
8255857.47746213[witness_v0_keyhash] +
1533142.20721626[witness_v0_scripthash] +
218711.25929655[witness_v1_taproot] +
0.53287185[witness_unknown].