select date_part('week', dzien) as week, sum(ilość_dialogues_details) as dil_det, sum(wyslane_sms) as wyslane_sms, sum(liczba_rozmów) as liczba_rozmów, sum(ecs_1) as ecs_1, sum(ecs_3) as ecs_3, sum(liczba_transferów) as liczba_transferów from first_raport group by date_part('week', dzien) order by date_part('week', dzien) desc;