A utility shall calculate and report in its supplemental annual performance report the following annual reliability information for its Maryland service territory: All IEEE major event days; Dates of all IEEE major event days; and Number of customers impacted by the IEEE major event day events. A utility shall calculate and report in its supplemental annual performance report an annual (CEMIn) for customers experiencing two or more (CEMI2), four or more (CEMI4), six or more (CEMI6), and eight or more (CEMI8) sustained interruptions unless it does not have the means to make the calculation, in which case it shall provide an explanation of the reason, and an estimate of the cost to provide the information in the future. A utility shall calculate and report: CEMI2, CEMI4, CEMI6, CEMI8, excluding major outage events; and CEMI2, CEMI4, CEMI6, CEMI8, including major outage events. A utility shall calculate and report in its supplemental annual performance report an annual (MAIFIE) for its Maryland service territory unless it does not have the means to make the calculation, in which case it shall provide MAIFI and an explanation of the Utility’s limitation as well as estimated cost to furnish MAIFIE information going forward. A utility shall calculate and report: MAIFIE excluding major outage events; and MAIFIE including major outage events.