This chart depicts the total edits made each year to the English Wikipedia by registered users broken down into groups based on the year of an account's first edit. All namespaces are included, and bots are excluded. A filled-in circle denotes the year that each cohort of users started editing.

It is observed that the group of editors that began editing in 2006, during a rapid period of growth for Wikipedia, is the largest ever and remained the largest contributor group to Wikipedia's total edit volume in every year from 2006 to 2014. In 2014, the edits by the 2006 cohort only narrowly exceeded the edits of new users registered in 2014. The cohorts from 2005 and 2007 were also large and persistent over time though not as large as 2006. They remained the third and fourth most frequent editor groups in 2014 respectively. The edit volume by accounts registered in 2014 is also noteworthy for exceeding the volume of edits by new users in 2013, the first time a year-to-year increase has been noted since 2006. This corresponded to a similar modest increase in the number of new accounts created in 2014 relative to 2013.