The Usage Report shows you the usage data for the overall Wi-Fi network as well as for individual connected devices.
The usage report needs to be enabled in order for you to see recorded data. To do this, click into your network and press the "Usage Report" button at the bottom left of the screen. Once on the "Usage Report" page press the "Enable" button at the bottom of the screen. This will take you to the "Usage Repost Settings" page. Here you can toggle the bottom to "on" to enable the usage report. Once enabled the usage report will show at the next whole hour.
You can see today’s, this week's, and this month’s usage data and the various reports.
For example, when users click the current Wi-Fi network and choose this week, they will see the total amount of upload and download data for the specified week.
For each day of the week, there is a histogram, when clicking on the individual histogram, you will see the total amount of upload and download data for the selected day.