(Entry was posted by Gregory Krista on this post in the Dumb SEO Questions community on Facebook, 12/11/2014).

Why does Google Webmaster Tools only show a portion of data.

Why does Google Webmaster Tools only show a portion of impressions and a portion of clicks on your dashboard??

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YOUR ANSWERS

Selected answers from the Dumb SEO Questions Facebook & G+ community.

Gregory Kristan: Why does Google Webmaster Tools only show a portion of impressions and a portion of clicks on your dashboard?
Tony McCreath: The graph shows the full count but they exclude a portion in the keyword/page details. ;

They could be excluded for privacy reasons. Or maybe just to minimise ;the database by not storing data for infrequent searches.
M M: Google set as the default web filter ;) Rest impressions are images, video and mobile.