Weighing the hive (continued 5) - very consistent results

Today I did yet another weighing of the hive: 22.86 kg. Plotting this with the previous data I get a steady 39,1 g/day - or 40 g/day in round numbers.

I am looking for a significant change in slope that will indicate that the bees have become active. Then it is time to check the hive from the inside.