The OneDrive Storage History report shows the amount of storage used per week in a line graph. You can choose to show the Allocated Storage by selecting its series item in the legend, or display the information in a bar graph by selecting the icon to the bottom right of the graph.
Changing the Date Period of the Report
When you first view this report it will show you the last 30 days worth of information. Use the Date Selection tool to display a different date range.
The Data Table
The data table lists each week, the allocated storage for that week, and the amount of storage used for that week. You can remove or re-order these columns to display more relevant information to your needs.
As with all of the reports, this information can be customized, filtered and scheduled.