input: [Description] The average time, in seconds, that each Rich Media ad is displayed to users. For ads with multiple assets (for example, an In-page with Floating), display time is only counted for the out-of-banner asset. This number is reached using this calculation: Rich Media display time / Total Rich Media impressions Any display times that exceed several minutes are capped. Extended display time can occur, for example, when a user opens a browser then steps away from the computer without closing the browser. The capping rule helps prevent skewed results for average display time in reporting. [Metric] 
output: Average display time