Weighing the hive (continued 4) - my results are spot on!

Just found this PDF on from 2007 (DCA Aarhus Universitet). They have measured the weight of their hives in exactly the same way as I have done this winter, so the results can easily be compared. On page 2 you find the weight loss to be very close to the 40 g that I have also observed. Also, they observe that the weight loss is approximately linear, just like I do.
Link to PDF