Unable to run aggregations on the customers response in a flattened Survey

In flattened surveys you have 2 fields from the survey question that you can report on. The issue I have seen is that one field you are reporting on is  the survey question, for a rating question this will display 0-4. The other is the participant response and will display 1-5.

We would like to be able to aggregate on the response value 1-5.