This regular bi-weekly pattern of reported page views http://stats.grok.se/sv.s/latest90/Wikisource:Projekt_Bibel%C3%B6vers%C3%A4t... is created by a bot job. Note that this is a WikiProject page.

Are the reported number of page views inflated by bots? Is there no way to filter out bot visits?

In other news, this page has a weekly pattern of real, human visitors, since it is a radio quiz where lots of listeners are known to use google searches, http://stats.grok.se/sv/latest90/Melodikrysset