| Aug 2010/Jan 2011 study | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | Totals |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year admins created their accounts or started editing | 32 | 109 | 223 | 404 | 481[1] | 326 | 115 | 43 | 13 | 0 | 0[2] | 1746 | ||
| Year active admins started editing[3] | 9 | 30 | 60 | 145 | 221 | 183 | 69 | 35 | 12 | 0 | 0 | 764 | ||
| Admins still active (Aug 2010/Jan 2011) % | 28.1% | 27.5% | 26.9% | 35.9% | 46% | 55.1% | 60% | 81.4% | 92.3% | 43.8% |
2001/2 (7%)
2003 (9%)
2004 (19%)
2005 (26%)
2006 (24%)
2007 (9%)
2008 (4%)
2009 (2%)
2010/11 (1%)