I'd need week over week total space used report that can be exported for the past several years. (ideally 7 years, same as other reports)

Part of this data is currently available in Insights (Admin Console), but it only displays for the past 30 days and doesn't have ability to export in CSV or Excel.

Background:
To calculate our ROI on Box and to report to our executive, we'd need a way to find out the historical data and its increase rate.