“Cairo” is much too broad for the light and location premium to carry much weight. You need comparables from the same building or genuinely similar nearby buildings, not merely apartments with the same bedroom count. Floor, outlook, traffic exposure and whether the light can later be obstructed...
The 52-day figure needs transaction volume behind it before it says much about buyer behaviour. A few well-presented condos could lower the average without indicating a wider Cairo shift.
I would next split the entries by district, price band and actual condition, then compare the number of...