Wikimedia in figures - Wikipedia
You probably wanted http://stats.wikimedia.org/.
Work in progress notice: (to be extended to all Wikimedia projects, periodical copy to foundation site?)
First attempt at a project fact sheet, static and simple, aimed at the media and the general public (Sue Gardner).
- This page reflects figures around the historical time point of 2008. Almost none of the data is valid today (as of 2013).
|Start date||15 January 2001|
|Articles||10,6 million|| ||(June 2008)|
|Media files||1.4 million|| ||(Aug 2007)|
|Views||> 2500 per second||||(Aug 2007)|
|Edits||> 3 per second
347 million total
|Editors||> 400,000||||(Jul 2007)|
|Administrators||3,880|| ||(Aug 2007)|
|Traffic Rank||9 nth||||(Sep 2007)|
The focus of this article is on quantitative data about Wikipedia that appeal to a wider audience. For a short-list of advanced analyses and in-depth studies see section References.
Wikipedia is the oldest and by far the largest project operated by the Wikimedia Foundation. It is also the largest, most extensive and fastest growing encyclopedia currently available on the Internet, despite its relative short existence: the first Wikipedia project was started as recent as 2001. See also History of Wikipedia.
Traffic volume 
Wikipedia visitors statistics are much less detailed and complete than almost everyone who inquires about Wikipedia's popularity and growth, including many journalists and researchers, would like to see.
The reason Wikimedia has much more extensive statistics about its editors than about its visitors is the sheer volume of data processing that would be required to produce the latter. Server access logs from hundreds of Wikimedia servers, containing many terabytes of data per day, would need to be merged and processed. This would have had serious implications, possibly bringing the internal network to a halt. Moreover it was considered unwise use of scarce hardware resources. For this reason direct visitor statistics have not been collected for several years.
- Page view counts
A partial solution was produced 2006/2007 with the WikiCharts project. Here page view statistics were collected without burdening the Wikimedia servers (using a common technique for web access counters: the user PC notifies an external server after the webpage has been received). These statistics were based on random sampling, again needed to cope with enormous numbers involved, and thus only dependable for often visited pages. Newer solutions, based on Squid server logs, are Wikipedia article traffic statistics and THEwikiStics.
- Views per second
In June 2007 a one-time measurement was made of number of visitors to all Wikimedia projects combined . The bottom line: all Wikimedia projects combined received roughly 7,000,000,000+ (more than seven billion) visits in that month. This results in an average view rate of more than 2500 Wikimedia pages per second, 24 hours per day. In all likelihood more than 99% of those visits are directed to the Wikipedia project.
- Edits per second
Every month approximately 9 to 10 million edits are applied to any Wikipedia project. Put differently, on average the combined Wikipedia databases receive over 3 edits per second, 24 hours per day (see Wikimedia projects edits counter).
- Traffic Ranks
The most referenced external statistics on the growing popularity of Wikipedia and its sister projects are trend figures and charts produced by Alexa. Although there are reasonable concerns over systemic bias in the results (some groups of users may be under/over represented) the overall trends are very revealing. Also Alexa is one of the few companies that publishes web traffic trends than span over 5 years (2007), and allow easy comparisons between web domains. See also Growth Figures below.
Book volumes 
The English Wikipedia is clearly larger by far than any printed encyclopedia. This gave the inspiration for Wikipedia_is_more_popular_than..., and for the following diagram:
- See also
- Wikipedia as books for an impression of how much space would be occupied by a printed edition of the whole of Wikipedia, including all languages.
Growth Figures 
In its short history Wikipedia has witnessed a phenomenal growth, in all aspects: number of language projects, size of the projects, number of contributors, visitor counts, and so on.
All Wikimedia projects retain a full history of all article revisions. For each update is recorded who made it, and when, and what had been changed. This makes it possible to collect a wealth of statistical data, and allows plotting of historical trends. As explained above historical visitor statistics are fragmentary at best, traffic ranks are approximations.
> 5 edits / > 100
|1 Jul 2007||± 9 nth||205||> 400,000||..||..||> 7.5 million||..||..||..||..||..|||
|1 Jan 2007||± 11 nth||179||± 350,000||..||..||..||..||..||..||..||..|||
|1 Jan 2006||± 20 nth||120||140,905||14,438||40,958 / 6,502||3.1 million||6482||17.6||5.4 million||7.6 Gb||909 million|
|1 Jan 2005||± 120 nth||81||47,353||4,416||12,848 / 2,301||1.3 million||2891||13.0||1.7 million||2.7 Gb||327 million|
|1 Jan 2004||± 950 nth||39||9,827||1,130||2,893 / 653||400,000||1193||8.4||427,000||715 Mb||94 million|
|1 Jan 2003||± 10,000 nth||14||1,955||226||580 / 151||400,000||1193||5.4||123,000||232 Mb||35 million|
|1 Jan 2002||..||7||426||87||190 / 27||138,000||351||2.5||16,000||36 Mb||5 million|
|*15 Jan 2001||1|
|* English Wikipedia started
Note: all figures relate to encyclopedic content only (discussion, user and housekeeping pages are excluded)
Largest Wikipedias 
edits last month
> 5 / > 100
|1.||English||Feb 2001||1,811,430||644,718||+55%||24.3%||± 50,000? / ± 5,000?||± 2200?||± 4 million?|
|2.||German||Jun 2001||592,031||183,253||+45%||7.9%||± 7,500/± 1100||± 525||± 875,000|
|3.||French||Feb 2002||501,658||206,697||+70%||6.7%||4251 / 738||597||635,000|
|4.||Polish||Nov 2001||384,757||145,739||+61%||5.2%||2144 / 371||413||301,000|
|5.||Japanese||Feb 2003||374,721||155,928||+71%||5.0%||± 4500;/± 550||± 475||± 500,000|
|6.||Italian||Nov 2002||304,080||141,348||+87%||4.1%||2715 / 496||423||365,000|
|7.||Dutch||Nov 2001||300,579||99,519||+49%||4.0%||1737 / 309||402||242,000|
|8.||Portuguese||Oct 2001||261,568||119,043||+84%||3.5%||1594 / 212||265||224,000|
|9.||Spanish||Oct 2001||238,157||114,996||+93%||3.2%||3627 / 489||402||447,000|
|10.||Swedish||Aug 2001||231,631||67,308||+41%||3.1%||998 / 165||174||127,000|
|11.||Russian||Feb 2003||176,332||92,517||+110%||2.4%||1687 / 334||300||217,000|
|12.||Chinese||Dec 2002||127,944||57,812||+82%||1.7%||1713 / 256||172||163,000|
|13.||Finnish||Mar 2003||117,088||52,785||+82%||1.6%||910 / 155||157||116,000|
|14.||Norwegian||Feb 2002||113,708||50,182||+79%||1.5%||630 / 120||113||86,000|
|15.||Esperanto||Jan 2002||84,751||39,842||+89%||1.1%||147 / 43||35||37,000|
|16.||Turkish||Jan 2004||80,360||56,944||+243%||1.1%||656 / 88||134||117,000|
|17.||Slovak||Jul 2004||70,021||30,391||+77%||0.9%||191 / 49||61||35,000|
|18.||Czech||Mar 2003||68,437||36,279||+113%||0.9%||516 / 88||83||58,000|
|19.||Romanian||Sep 2003||64,275||30,181||+89%||0.9%||260 / 56||127||74,000|
|20.||Danish||Sep 2002||63,325||20,128||+47%||0.8%||379 / 61||59||47,000|
|Data from||n.a.||1 June 2007 ||1 June 2007 ||1 June 2007 ||1 June 2007 ||30 June 2007 ||30 June 2007||30 June 2007|
|Some data (with the question marks) for the English Wikipedia are extreme but conservative extrapolations, as statistics after October 2006 are not yet available.
Similar data for the German and Japanese Wikipedias are safe extapolations, based on exact figures from the previous month.
At a rate of 400 words a minute, 24 hours a day, a person could read nearly 20 million words in a month. In the month of July 2006, the English Wikipedia grew by over 30 million words. In other words, a sleepless fast reader could never catch up with Wikipedia's new content. Reading the current incarnation at that rate would take over two years, and by the time they were done, so much would have changed with the parts they had already read that they would have to start over.
- Most recent statistics
- In-Depth Statistics
- Wikipedia statistics pages A large annotated list of relevant statistics pages
- Multilingual statistics Key figures for all language project, milestones.
- Size of Wikipedia (analysis of growth)
|Wikistats: lots of tables and charts on all Wikipedia language projects.||Growth of all Wikimedia projects in one concise chart|
- Wikistats. Wikimedia.
- List of Wikipedias. Wikimedia.
- Wikistats by S23 - List of Wikipedias. S23.
- pictures, audio files, video files
- Figure is explained in the article text.
- Wikistats, Editors per Month. Wikimedia.
Editors defined as "Registered contributors who edited at least 10 times since they arrived".
Conservative estimate, as numbers for English Wikipedia needed to be extrapolated.
- Many regular contributors edit/operate on several Wikipedias (especially administrators), the actual number of unique persons is therefore lower
- Traffic Rank. Alexa.
- WikiCharts, most viewed articles on the English Wikipedia (example). Wikimedia Toolserver.
- Wikimedia page views. Wikimedia lead developer Brion Vibber.
- Wikistats, Edits per Month. Wikimedia.
- Awareness statistics. Wikimedia.
- Wikistats, Article count (official). Wikimedia.
Languages with 100 or more articles. At 1 July 2007 there were yet another 45 Wikipedias with less articles.
- Wikistats, New articles per day. Wikimedia.
- Wikistats, Edits per article. Wikimedia.
- Wikistats, Edits per month. Wikimedia.
- Wikistats, Database size. Wikimedia.
- Wikistats, Words. Wikimedia.
- Recent data for the English Wikipedia are not yet available. Until then some figures can not be given, others only estimated (±.. or >..)
|Wikimedia projects in figures|