Raw usage data is most frequently used for comparing raw vs billable traffic and providing the up/down volume of traffic as recorded in CDRs.
CDRs are billing records, rated CDRs show the data and usage after the provider has applied any applicable minimum increments.
Minimum increments typically make a negligible difference to the total traffic volume. In cases with frequent minimum increments, there may be a noticeable discrepancy between usage volumes to traffic logs.
BillingAdmins can validate the CDR raw usage vs billable traffic in the unified CDRs page via [Billing], [Mediation] and [CDRs].

Raw volume up and Raw volume down can be added to the CDR report in the Table Options Menu.
Note: Raw usage reports will display the volumes in bits. To calculate bytes divide the bit value by 8.
To view the raw usage for a single SIM, filter by ICCID and traffic month.

