This information can be gathered by running a Site Usage report from Report Writer.  This report shows usage information on a monthly basis.

To run it, do the following:
  1. Go to Data Management -> Reports -> Report Writer -> Create New Report.
  2. Choose Usage from the drop-down.
  3. Choose the Site Usage radio button.
  4. Click Next.
  5. The column to be concerned with is Outbound Emails, which should be selected by default.
  6. Click Next.
  7. Order and Rename Columns as needed.
  8. Click Next.
  9. Select a sort order, if needed.
  10. Click Next.
  11. Choose filters.  If you are wanting to show statistics for a specific month, Create a filter and choose Personal Fundraising from the first drop-down, then Reporting Month from the second drop-down.
  12. Click Next.
  13. Identify Report.
  14. Click Next.
  15. Choose to Run or Save report.

When running the report, just click through the steps until the report appears in the Report Results tab.