Photo:1
Photo:2
Photo:3
Photo:4
Photo:1 Photo:2 Photo:3 Photo:4 |
| Wikipedia growth | |
| 2>
For more details and discussion of other models, see Wikipedia:Modelling Wikipedia's growth.
Wikipedia's growth approximately follows a Gompertz growth model. This model was created in June 2010, and it is determined by the Gompertz function, , with parameters:
a = 4378449
b = −15.42677
c = −0.384124
t is the time in years since 1/1/2000 (so 1/1/2010 is t = 10.00).
Actual number of articles on en.wikipedia.org (thick blue line) compared with a Gompertz model that leads eventually to a maximum of about 4.4 million articles (thin green line)
Article growth per month (thick blue line, averaged over the previous 6 months). Growth per month of Gompertz model (thin line).
Some characteristics of this model are:
a pivot point at which the growth is at its peak. For en.wikipedia.org this might have been in August 2006 with 60,000 new articles per month.
a maximum to the number of articles of about 4.4 million (as determined by parameter a of the model). Actually there will always be new events and people to describe in the future, and these will lead to the creation of perhaps 12,000 new articles per month.
This model is related to the quantity (number of articles). The quality might still increase independently.
[edit] Tags:Growth,Wikipedia,Wikipedia:modelling Wikipedia's Growth, | |
| Graphs of size and growth rate | |
| 3>
The two graph images show: in the first graph, the historical and expected total number of articles; in the second graph, the monthly growth rate, slowing since late 2006 (line sloping downward).
Detailed analysis of the data shows that from 2006 to 2009 the article growth rate followed a six-monthly cycle with faster growth in February and August than in May and November. This cycle does not appear in the growth-rate graph here, because the values shown in the graph have been averaged over periods of six months.
[edit] Tags: | |
| Annual growth rate | |
| 3>
For the English Wikipedia.
Date
Article count
Increase during
preceding year
% Increase during
preceding year
Average increase per
day during preceding year
2002-01-01
19,700
19,700
-
54
2003-01-01
96,500
76,800
390%
210
2004-01-01
188,800
92,300
96%
253
2005-01-01
438,500
249,700
132%
682
2006-01-01
895,000
456,500
104%
1251
2007-01-01
1,560,000
665,000
74%
1822
2008-01-01
2,153,000
593,000
38%
1625
2009-01-01
2,679,000
526,000
24%
1437
2010-01-01
3,144,000
465,000
17%
1274
2011-01-01
3,518,000
374,000
12%
1025
2012-01-01
3,835,000
317,000
9%
868
2012-02-11
3,870,565
35,565[a]
--
846[a]
[a] - Calculated live, so far, as only for partial year.
[edit] Tags:English Wikipedia, | |
| Comparisons with other Wikipedias | |
| 2>
Codes: en - English • de - German • fr - French • pl - Polish • ja - Japanese • it - Italian • nl - Dutch • pt - Portuguese • es - Spanish • sv - Swedish
This graph is based on data from http://stats.wikimedia.org/EN/TablesArticlesTotal.htm as of June 2, 2007, with recent values for the English Wikipedia taken from the data below. The sum includes all 270+ Wikipedia languages. See the front page at http://www.wikipedia.org for a recent article count for the 10 largest Wikipedias.
The English edition remains the largest Wikipedia, over three times as large as the second largest edition, the German Wikipedia. Many other editions shared the quasi-exponential growth of the English edition, though lagging one to three years behind. As these other Wikipedias have grown, the overall percentage of articles in English has been steadily decreasing, and it fell below 25% in March 2007. The percentage of articles in the ten largest Wikipedias has also been decreasing, although these top ten still account for about 67% of all Wikipedia articles as of June 2007.
[edit] Tags: | |
| Chronology of software versions | |
| 2>
Phase I UseMod Wiki-based software: January 10, 2001 – January 25, 2002
Phase II PHP-based software: January 25, 2002 – July 20, 2002
Phase III PHP-based software: July 20, 2002 – present
This data set notes the fact that these figures are drawn from multiple data sources and different estimates (see the key below for details), and presents them as a spreadsheet-ready table for graphing. The original data sets are archived: see the links below. Note also that the figures are sampled at random times of day.
[edit] Tags:Phase I,Phase Ii,Phase Iii, | |
| Hard copy size | |
| 2>
Main page: Wikipedia:Size in volumes
The following tries to illustrate how big the English-language Wikipedia might be if printed and bound in book form. Each volume is assumed to be 25 cm tall, 5 cm thick, and containing 1,600,000 words or 8,000,000 characters. The size of this illustration is based upon the live article count.
1632 volumes
8 stacks
[edit] Tags:Main Page, | |
| The data set | |
| 2>
See also: Wikipedia:Modelling Wikipedia's growth#Data set for number of articles
Key to the data below:
approx: this figure is an approximation
lowerbound indicates that there were at least this many pages
mpac3.1: main page article count from the Phase III software since May 25, 2003: article namespace, not redirects, containing at least one internal wiki link
mpacIII: main page article count from the Phase III software up to May 22, 2003: article namespace, comma, not redirect
mpacII: main page article count from the Phase II software
spII: stats page article count from the Phase II software
all: total of all pages of any sort
commapp: pages which include a comma, a crude way of finding "real" articles
conscnt: "conservative count" taken by removing the count of various types of non-article from the comma page count
MF: Malcolm Farmer
LMS: Larry Sanger
WA: Wikipedia:Announcements
Now extended and annotated with (somewhat gnomic) source information. Note that sampling times are only recorded to the day given by the user recording the entry, and that there is no clear time-zone information for that day.
Note: The current mpac3.1 article count for the English-language Wikipedia is 3,870,565 articles
2011-11-01, 3784306, mpac3.1
2011-08-07, 3704299, mpac3.1
2011-06-21, 3663629, mpac3.1
2011-06-18, 3661385, mpac3.1
2011-03-31, 3599159, mpac3.1
2011-02-15, 3559253, mpac3.1
2011-01-24, 3540209, mpac3.1
2011-01-03, 3519837, mpac3.1
2010-12-12, 3499170, mpac3.1
2010-08-15, 3379047, mpac3.1
2010-08-05, 3369561, mpac3.1
2010-05-17, 3292706, mpac3.1
2010-04-23, 3266245, mpac3.1
2009-12-13, 3123353, mpac3.1
2009-11-23, 3102627, mpac3.1
2009-10-15, 3063124, mpac3.1
2009-09-12, 3031291, mpac3.1
2009-08-26, 3013053, mpac3.1
2009-08-17, 3000000, mpac3.1
2009-07-31, 2975970, mpac3.1
2009-07-11, 2943644, mpac3.1
2009-04-17, 2843391, mpac3.1
2009-03-07, 2780320, mpac3.1
2009-02-17, 2746003, mpac3.1
2009-02-01, 2722366, mpac3.1
2009-01-01, 2679785, mpac3.1
2008-12-10, 2652896, mpac3.1
2008-11-21, 2631334, mpac3.1
2008-11-04, 2612599, mpac3.1
2008-10-20, 2591574, mpac3.1
2008-10-02, 2569004, mpac3.1
2008-09-14, 2553609, mpac3.1
2008-08-16, 2510197, mpac3.1
2008-08-11, 2500000, mpac3.1 (inserted retroactively from data in WA)
2008-07-30, 2479280, mpac3.1
2008-07-15, 2456599, mpac3.1
2008-07-02, 2436830, mpac3.1
2008-06-21, 2421535, mpac3.1
2008-06-04, 2399617, mpac3.1
2008-05-20, 2379635, mpac3.1
2008-05-13, 2370238, mpac3.1
2008-04-30, 2353068, mpac3.1
2008-04-06, 2320245, mpac3.1
2008-03-21, 2291433, mpac3.1
2008-03-08, 2269796, mpac3.1
2008-02-23, 2246333, mpac3.1
2008-02-07, 2214256, mpac3.1
2008-01-30, 2200000, mpac3.1
2008-01-12, 2170716, mpac3.1
2007-12-16, 2129551, mpac3.1
2007-12-08, 2118053, mpac3.1
2007-11-27, 2104052, mpac3.1
2007-11-15, 2090929, mpac3.1
2007-10-20, 2055408, mpac3.1
2007-10-06, 2037246, mpac3.1
2007-09-09, 2000000, mpac3.1 (inserted retroactively from data in WA)
2007-09-05, 1991220, mpac3.1
2007-08-28, 1978895, mpac3.1
2007-08-09, 1941186, mpac3.1
2007-08-01, 1925624, mpac3.1
2007-07-22, 1900000, mpac3.1 (inserted retroactively from data in WA)
2007-07-12, 1879826, mpac3.1
2007-06-23, 1847297, mpac3.1
2007-06-10, 1828002, mpac3.1
2007-06-02, 1813007, mpac3.1
2007-05-25, 1800000, mpac3.1
2007-05-16, 1785384, mpac3.1
2007-05-01, 1763270, mpac3.1
2007-04-16, 1740243, mpac3.1
2007-03-22, 1700000, mpac3.1 (inserted retroactively from data in WA)
2007-03-07, 1674588, mpac3.1
2007-02-14, 1638583, mpac3.1
2007-02-08, 1626802, mpac3.1
2007-01-24, 1598645, mpac3.1
2006-12-19, 1539908, mpac3.1
2006-11-24, 1500000, mpac3.1 (inserted retroactively from data in WA)
2006-11-08, 1473418, mpac3.1
2006-10-21, 1444717, mpac3.1
2006-10-05, 1418517, mpac3.1
2006-09-22, 1396727, mpac3.1
2006-08-26, 1344771, mpac3.1
2006-08-15, 1317963, mpac3.1
2006-08-06, 1300000, mpac3.1 (inserted retroactively from data in WA)
2006-07-04, 1234741, mpac3.1
2006-06-19, 1200000, mpac3.1 (inserted retroactively from data in WA)
2006-06-05, 1173156, mpac3.1
2006-05-12, 1129680, mpac3.1
2006-04-27, 1100000, mpac3.1 (inserted retroactively from data in WA)
2006-03-24, 1040919, mpac3.1
2006-03-17, 1027914, mpac3.1
2006-03-01, 1000000, mpac3.1 (inserted retroactively from data in WA)
2006-02-27, 995933, mpac3.1
2006-02-14, 971518, mpac3.1
2006-01-30, 945642, mpac3.1
2006-01-16, 921824, mpac3.1
2006-01-03, 897700, mpac3.1
2005-12-20, 874359, mpac3.1
2005-12-05, 851295, mpac3.1
2005-11-11, 815460, mpac3.1
2005-10-27, 791967, mpac3.1
2005-09-12, 726894, mpac3.1 (another long gap since last manual update)
2005-08-25, 700000, mpac3.1 (inserted retroactively from data in WA)
2005-06-19, 600000, mpac3.1 (inserted retroactively from data in WA)
2005-04-29, 544514, mpac3.1 (more than one month without data...)
2005-03-18, 500296, mpac3.1 (after another more minor server glitch and recovery)
2005-03-13, 496881, mpac3.1
2005-03-01, 486042, mpac3.1 (after server crash and DB recovery)
2005-02-10, 471659, mpac3.1
2005-01-27, 458779, mpac3.1
2005-01-01, 438533, mpac3.1
2004-12-04, 414023, mpac3.1
2004-11-18, 398159, mpac3.1
2004-11-16, 396408, mpac3.1
2004-11-08, 389614, mpac3.1
2004-11-01, 384336, mpac3.1
2004-09-01, 337911, mpac3.1
2004-08-25, 333015, mpac3.1
2004-08-23, 331191, mpac3.1
2004-08-13, 324551, mpac3.1
2004-08-07, 320532, mpac3.1
2004-07-25, 312524, mpac3.1
2004-07-10, 302333, mpac3.1
2004-05-13, 264854, mpac3.1
2004-05-07, 261964, mpac3.1
2004-04-28, 255596, mpac3.1
2004-02-27, 215140, mpac3.1
2004-02-15, 206665, mpac3.1
2004-02-07, 202410, mpac3.1
2004-02-01, 199738, mpac3.1
2004-01-28, 198011, mpac3.1
2004-01-22, 196070, mpac3.1
2003-12-31, 188538, mpac3.1
2003-12-23, 186539, mpac3.1
2003-12-16, 184273, mpac3.1
2003-12-08, 180008, mpac3.1
2003-12-03, 178093, mpac3.1, after database rebuild and recalculation of count
2003-11-25, 176091, mpac3.1
2003-11-21, 174904, mpac3.1
2003-11-19, 174376, mpac3.1
2003-11-12, 172387, mpac3.1
2003-10-30, 168762, mpac3.1
2003-10-14, 164565, mpac3.1
2003-10-04, 162636, mpac3.1
2003-09-27, 160361, mpac3.1
2003-09-12, 156047, mpac3.1
2003-09-09, 155316, mpac3.1
2003-09-04, 154061, mpac3.1
2003-08-31, 153047, mpac3.1
2003-08-15, 148859, mpac3.1
2003-07-27, 144467, mpac3.1
2003-07-15, 141607, mpac3.1
2003-07-07, 139896, mpac3.1
2003-07-04, 139031, mpac3.1
2003-07-01, 136737, mpac3.1
2003-06-27, 135963, mpac3.1
2003-06-25, 135504, mpac3.1
2003-06-22, 134869, mpac3.1
2003-06-19, 134256, mpac3.1
2003-06-16, 133411, mpac3.1
2003-06-11, 132267, mpac3.1
2003-06-09, 131900, mpac3.1
2003-06-06, 131249, mpac3.1
2003-06-04, 130797, mpac3.1
2003-05-31, 129884, mpac3.1
2003-05-28, 129240, mpac3.1
2003-05-25, 128475, mpac3.1 (correction of broken counter, new algorithm)
2003-05-22, 120704, mpacIII (installation of new webserver on 05-14 fixed the count at 120704)
2003-05-12, 120173, mpacIII
2003-04-29, 117658, mpacIII
2003-04-23, 116408, mpacIII
2003-04-22, 116259, mpacIII
2003-04-21, 116066, mpacIII
2003-04-20, 115879, mpacIII
2003-04-18, 115361, mpacIII
2003-04-15, 114861, mpacIII
2003-04-12, 114469, mpacIII
2003-04-11, 114274, mpacIII
2003-04-01, 112564, mpacIII
2003-03-28, 112035, mpacIII
2003-03-15, 109933, mpacIII
2003-03-07, 108593, mpacIII
2003-03-05, 108298, mpacIII
2003-02-27, 107243, mpacIII
2003-02-26, 107027, mpacIII
2003-02-24, 106700, mpacIII
2003-01-22, 100321, mpacIII
2003-01-12, 98475, mpacIII
2003-01-08, 97913, mpacIII
2003-01-04, 97137, mpacIII
2003-01-02, 96664, mpacIII
2002-12-26, 95735, mpacIII
2002-12-23, 95452, mpacIII
2002-12-16, 94497, mpacIII (so; is the counter fixed now?)
2002-12-13, 93834, mpacIII
2002-12-10, 93301, mpacIII, Corrected counter drift
2002-12-10, 100046, mpacIII, RAMBOT causing Error in counter.
2002-12-04, 94165, mpacIII
2002-12-01, 93880, mpacIII
2002-11-27, 93263, mpacIII
2002-11-25, 92777, mpacIII, ~775 bot generated articles added.
2002-11-22, 91580, mpacIII, some recent performance problems
2002-11-18, 90905, mpacIII, article counter is back, after being switched off
2002-11-09, 90266, mpacIII
2002-11-07, 90003, mpacIII
2002-11-06, 89375, mpacIII
2002-11-01, 88597, mpacIII
2002-10-30, 88292, mpacIII
2002-10-27, 87285, mpacIII
2002-10-26, 87206, mpacIII
2002-10-25, 87037, mpacIII, rambot in operation
2002-10-24, 80887, mpacIII, rambot in operation
2002-10-23, 76958, mpacIII, rambot in operation
2002-10-22, 74005, mpacIII, rambot in operation
2002-10-21, 66738, mpacIII, rambot in operation
2002-10-20, 66372, mpacIII, rambot in operation
2002-10-19, 61128, mpacIII, rambot in operation
2002-10-17, 54339, mpacIII
2002-10-14, 53174, mpacIII
2002-10-11, 52571, mpacIII
2002-10-10, 52435, mpacIII
2002-10-08, 52092, mpacIII
2002-10-04, 50953, mpacIII
2002-10-03, 50804, mpacIII
2002-09-30, 49724, mpacIII
2002-09-27, 47448, mpacIII
2002-09-26, 47152, mpacIII
2002-09-25, 46133, mpacIII
2002-09-24, 45707, mpacIII
2002-09-23, 45462, mpacIII
2002-09-22, 45159, mpacIII
2002-09-21, 44920, mpacIII
2002-09-17, 43962, mpacIII
2002-09-16, 43762, mpacIII
2002-09-10, 42268, mpacIII
2002-09-09, 42021, mpacIII
2002-09-07, 41559, mpacIII
2002-09-05, 41141, mpacIII
2002-09-04, 40934, mpacIII
2002-09-03, 40718, mpacIII
2002-08-31, 40093, mpacIII
2002-08-22, 38780, mpacIII
2002-08-14, 37508, mpacIII
2002-08-12, 37259, mpacIII, upgraded to phase III software after major performance problems
2002-05-17, 33333, spII approx (WA)
2002-04-16, 32000, spII approx (WA)
2002-03-28, 30000, spII approx (WA)
2002-02-04, 23000, mpacII approx (WA)
2002-01-09, 20000, estimate approx (LMS WA)
2001-12-14, 19000, conscnt approx
2001-12-07, 18000, conscnt approx
2001-11-06, 16000, conscnt lowerbound
2001-10-25, 15053, conscnt (LMS WA)
2001-10-19, 14000, commacnt lowerbound
2001-10-04, 13182, conscnt (MF WA)
2001-09-19, 12502, conscnt (LMS)
2001-09-09, 11208, conscnt (MF)
2001-09-07, 10000, conscnt lowerbound
2001-08-22, 9043, conscnt
2001-08-07, 8000, conscnt
2001-07-27, 7243, conscnt
2001-07-26, 6947, conscnt
2001-07-08, 6000, conscnt lowerbound
2001-05-20, 4985, commapp
2001-05-10, 3969, commapp
2001-04-27, 3281, commapp
2001-03-30, 2221, commapp
2001-03-24, 1910, commapp
2001-03-07, 1323, commapp
2001-02-12, 1000, all lowerbound
2001-02-08, 900, all lowerbound
2001-01-31, 617, all
2001-01-25, 270, all
2001-01-10, 0, all
These pages hold the earlier source data in its original ad-hoc tabular format:
Wikipedia:Size of Wikipedia - 2002 archived data
Wikipedia:Size of Wikipedia - 2001 archived data
[edit] Tags:Wikipedia:announcements,Article Namespace, Not Redirects, Containing At Least One Internal Wiki Link,Malcolm Farmer,Larry Sanger,Gnomic, | |
| See also | |
| 2>
Wikipedia:Abundance and redundancy
Wikipedia:Awareness statistics
Wikipedia:Non-English Wikipedias
Wikipedia:Size comparisons
Wikipedia:Statistics
[edit] Tags:Awareness,Wikipedia:statistics,Wikipedia:abundance And Redundancy,Wikipedia:awareness Statistics,Wikipedia:non-english Wikipedias, | |
| External links | |
| 2>
Wikipedia Statistics, auto-generated from database dumps, but badly out of date as regards the English and French Wikipedias
Wikipedia milestones
Retrieved from "http://en.wikipedia.org/w/index.php?title=Wikipedia:Size_of_Wikipedia&oldid=474523467"
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