Sum of values of UTXO elements with the fixed script output type. At height 974620 we have that circulating supply = 20107960.48984998 =
2627.60643497[nonstandard] +
1714618.81108232[pubkey] +
4525465.74769812[pubkeyhash] +
3660586.01374861[scripthash] +
58.38122723[multisig] +
8305767.08021623[witness_v0_keyhash] +
1677469.41950731[witness_v0_scripthash] +
221366.89233530[witness_v1_taproot] +
0.53759989[witness_unknown].