I do not get any data for 2019. Data start just in 2020 REV03. Would you be able to tell me where I can look for the mistake
Since 'unit price' is not time bound, the only other place you can check is REV02 module, where you should have volumes for 2019 months as well. If you don't find data for 2019 in REV02, please recheck corresponding import.
Also, though not related to this issue, I noticed 2018 year as well in your model. May I know why you got that extra past year?