select

block_timestamp::date as day,

count(distinct from_address) as transferers_count

from ethereum.core.fact_token_transfers

where contract_address = '0x92d6c1e31e14520e676a687f0a93788b716beff5'

and day > current_date - 90

group by day

select avg(transferers_count) as average_transferers_count

from t