Using historical reports based on interval data, you can generate reports for a week, month, or year based on the current interval. All historical summary and trend reports that return interval-based measures do not include data from the current 15-minute interval until data aggregation is run for the interval. By default, report caching settings are set to 15 minutes. Therefore, you might need to wait for up to 30 minutes for the data of the current interval to display in the report.