I think this conversation will be measuring string. Too many variables. What size container? What's the weather like where you are? How much do you put on each application? What do you do day to day? What's the weather like where you live?
I live in Australia, and I am really active. Safe to say I will be sweating a lot more than someone living in Alaska who's a homebody, and so may use a bit more deodorant.
Perversely, I often find my use of deodorant increases in colder weather. Primarily this is because where I live, people seem to want to compensate by adding one degree to the thermostat for every degree it falls below 21—inside in winter can be absolutely boiling.
This is made even worse by the fact that in order to leave the building (or when you first arrive), you're dressed for the outside weather.
