Autocomplete Rows

Good morning! I need your help with the following issue. I download a file containing import data from different countries. Each row represents an imported item, so for a given month, there can be multiple entries (and it's necessary for me to have the data for each item). However, there may also be months where no imports occur, meaning there is no corresponding entry. For example:

01/12/2023 - 10,000m3
01/23/2023 - 12,000m3
05/07/2023 - 11,000m3

What I need is to generate new rows for the empty months with the date and a zero value. For example:

01/12/2023 - 10,000m3
01/23/2023 - 12,000m3
02/01/2023 - 0m3
03/01/2023 - 0m3
04/01/2023 - 0m3
05/07/2023 - 11,000m3

Can anyone help me?
Thanks!!