English: A graph of trends in monthly participation level for registered non-bot accounts on English Wikipedia, from January 2005 until September 2008. Each trend line is normalized to the September 2008 value. Based on Editing frequency data provided by Robert A. Rohde
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{{Information |Description={{en|1=A graph of trends in monthly participation level for registered non-bot accounts on English Wikipedia, from January 2005 until September 2008. Each trend line is normalized to the September 2008 value. Based on [http://