Statistics, with "Wikipedians", "active" and "very active users";
like often, Zachte's Statistics are great, but easily misleading.
Also keep in mind that most figures in wikistats still include bot edits.
IMO it becomes more and more urgent to present separate counts for humans and bots.
For instance in eo: 54% of total edits for all time were bot edits, but most
of these will be from recent years, so the percentage will be even higher
for recent years.
http://stats.wikimedia.org/EN/BotActivityMatrix.htm
Erik Zachte