All organizations store sensitive data; mature organizations restrict the number of containers in their file systems that contain it and track them closely. The number of folders containing sensitive data gives you an indication of how tightly it is controlled.
From the list on the left, find “No. of folders that contain sensitive files,” click on it to highlight the selection, and click the “>” arrow to move it to the selection field (Optional: select the color of the chart using the drop-down menu).
This report should show a consistent, flat graph over time with few deviations, as sensitive data should be stored in tightly-controlled locations. A consistent upward trend could represent the dissemination of sensitive data to unapproved locations.