See below for illustrations regarding the data structure for Reporting API results:
First is an example report in the UI, including the tabular data you can find at the bottom of the report as an inset:
Here we see the JSON for the report, with a set of data columns that correspond to the report dimensions:
Finally, we see how the columns of data from the JSON correspond to the columns of data from the original report:
For more information on how to utilize the CloudHealth API, see: https://apidocs.cloudhealthtech.com/