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SELECT DATEPART(weekday, p.CreationDate), COUNT(*) FROM Users u JOIN Posts p ON p.OwnerUserId = u.Id WHERE p.CreationDate > DATEADD(day, -364, GETUTCDATE()) AND ABS(DATEDIFF(day, u.CreationDate, p.CreationDate)) < 7 GROUP BY DATEPART(weekday, p.CreationDate)