RECORD WEIGHT of a Model in a month

Weight of the heaviest version of the Model that was generated during that month. If the Model was not generated then its record weight in that month is zero.

As an illustrative example, we consider in the following table the case of a Model that has been generated six times in the period between 1 May and 31 July: 

date time
Model weightNotes
May 6th, 2:30 pm14.200
May 15th, 6:20 pm15.300Heaviest version generated in May
May 23rd, 9:40 am15.200Some elements deleted with respect to previous version
July 2nd, 1:15 am18.200
July 16th, 5:55 pm19.600Heaviest version generated in July

 In the above scenario, the record weight of the Model in the months of May, June and July is calculated as shown in the following table: 

MonthRecord weightNotes
May15.300Weight of version generated on May 15th
JuneNon definitoModel never generated in June
July19.600Weight of version generated on July 16th