"Popular Searches weekly report " actually returns "Popular Searches in the last 2 months".
There is no option to limit by week.
SalesForce case 00476519 / Status: Development / Priority:High (opened 10/Jun/2017)
In Summon Analytics (Current), the "Popular Searches weekly report " actually returns "Popular Searches in the last 2 months".
The report does not have the option of applying weekly time frames.
The title given to the search suggests that someone thought weekly reports would be desirable, but they did not provide the option of week.
subject area: popular searches
From the IGeLU-ELUNA Analytics Working Group, Analytics Evidence Document
Please send questions or comments to the Analytics Working Group Listserv