I performed an experiment and I have determined the rates of consumption for oil, pottery, furniture, and wine. Note that the rates of consumption only apply to a house which requires the item. For example, the residents of a small casa may have pottery stored but they will not use it until they upgrade to large casa. Another note: these rates apply to all houses that require the given item; small insulae do not consume more pottery thangrand insulae or even luxury palaces. Well, anyway here are the numbers.
Pottery
|
2 units/month
|
Furniture
|
2 units/month
|
Oil
|
2 units/month
|
Wine
|
2 units/month - 4 units/month if house requires two
types of wine
|
Initial delivery numbers are:
Pottery
|
32 units
|
Furniture
|
16 Units
|
Oil
|
16 Units
|
After the initial delivery a house will only maintain the following amounts:
Pottery
|
8 units
|
Furniture
|
4 units
|
Oil
|
4 units
|
Wine
|
4 units ( 8 units if house requires two types of wine)
|
Also a market will replenish its stocks when the number of units falls below 50; it will get 200 units if possible.
Finally, I noticed that a luxury palaceonly requires to three temples rather than four. And no I have not messed with the C3model.txt file.
My experiment ran over the course of 73 game months and the numbers never varied. If you want a copy of my saved experiment to verify it for yourself feel free to email me.