Query: sns_topic_cost_per_month

select
   to_char(period_start, 'Mon-YY') as "Month",
   sum(unblended_cost_amount)::numeric::money as "Unblended Cost"
from
  aws_cost_by_service_usage_type_monthly
where
  service = 'Amazon Simple Notification Service'
group by
  period_start
order by
  period_start;