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