get https://{region}-api.dotdigital.com/v2/email/stats/since-date/?endDate=&aggregatedBy=[AggregatedBy]
Gets transactional email reporting statistics for a specified time period
This operation retrieves your transactional email reporting statistics (number sent, delivered, opens, clicks, ISP complaints and bounces) for a specified time period.
This time period can be set with a specific end date, or statistics can be aggregated by all time, week, month or day.
If you specify an aggregation period, then you will receive a set of results for each period within the start and end dates.