So as the title states, how much filament do you go through?
I'm working on a project for school and need to know, on average, how much filament everyone is buying on a regular basis.

I'm going to attempt a poll but in case it doesn't work out I would like to know:

How many kilograms of filament do you buy and how often does that happen?

or

How much do you think you have bought and how long have you had your 3D printer/s?


I'm mostly interested in the numbers for 1.75mm PLA filament but if you can provide any information at all that would be extremely helpful!

Thank you all so much for any help you can give me!!