Image: Comparison of percentage of edit number - IP user and registered user

Description: comparison of contributions from IP users and registered users, in some language wikipedia with respect to edit count. In ja.wiki, IP user's contribution constitutes significant portion of total edits. This graph is made by おむこさん志望(Omukosan-Shibou), Japanese wikipedia user, from wikimedia database dump(http://download.wikimedia.org/ ). Only en and de data is from dump of Oct 2007, the other is from dump of Nov 2007. He or she counted up the number of "ip" and "id" value in "contributor" field in the ??wiki-**-stub-meta-history.xml.gz file. The result is as fallows.
Title: Comparison of percentage of edit number - IP user and registered user
Credit: グラフで見るウィキペディア-各言語版における登録ユーザとIPユーザの割合 at おむこさん志望's blog.
Author: w:ja:User:おむこさん志望(Omukosan-Shibou)
Permission: GFDL
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes