Create a chart using two different dates for the same rows

Hello,

I'm finding some difficulties when trying to create a report from data from our CRM.

I have a table "Invoices", with the information I need to create the chart I want.

My problem is that, I need to create a chart that displays the invoiced ammount for each month, that would use the "Invoiced Ammount" and the "Emission Date" fields, and the revenue, that would use the "collected ammount" and the "collection date" fields.

Is there any way that I could sort in the same chart, data from two different fields, using one different date for each?