The following chart types are available on the Usage page: Total Usage, Average Usage, and Distribution. Use the drop-down menus at the top of the screen to customize the report criteria then click Update Graph to view the data.
Exact amounts can be viewed by hovering over a particular data point.
You can also control which data is being displayed by clicking on the categories in the legend. The values on the y-axis will automatically adjust to best fit the data being displayed.
For more information, see the Analytics-Usage Video.