select tx_sender,

min (date_trunc(week, blocK_timestamp))::date as min_date

from terra.core.fact_transactions

group by 1

select min_date as week,

count (distinct tx_sender) as new_users_count,

sum (new_users_count) over (order by min_date) as cumulative_new_users_count

from t1

group by 1

order by 1