Array of ImpressionHourlySummary

ImpressionHourlySummary includes the following attributes that summarize presence for an Advertiser over a period of time.

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Paremeter	Type	Description
AdvertiserId	String	AdvertiserId for the Report Statistics Summary.
StatHour	DateTime	Hour of the impression summary. Example: 2014-05-20 16:00.
TotalImpression	Int	Observed. The total number of impressions observed for the Advertiser during the StatHour.
PresentImpression	Int	Observed. The total number of impressions observed for the Advertiser during the Stat Hour for which the Advertiser was also online.