For each week beginning on a given date, the figures show the number of sites that reported they are using the Drupal 5.21 release.

These statistics are incomplete; only Drupal websites using the Update Status module are included in the data. As this module is now included with the download of Drupal since version 6.x, the data is heavily biased toward newer sites. Read more information about how these statistics are calculated.

Week startingCount
April 6, 2014134
March 30, 2014143
March 23, 2014135
March 16, 2014131
March 9, 2014139
March 2, 2014134
February 23, 2014145
February 16, 2014141
February 9, 2014147
February 2, 2014146
January 26, 2014146
January 19, 2014147
January 12, 2014152
January 5, 2014150
December 29, 2013152
December 22, 2013148
December 15, 2013195
December 8, 2013273
December 1, 2013152
November 24, 2013148
November 17, 2013162
November 10, 2013162
November 3, 2013165
October 27, 2013160
October 20, 2013155
October 13, 2013163
October 6, 2013169
September 29, 2013164
September 22, 2013170
September 15, 2013171
September 8, 2013167
September 1, 2013181
August 25, 2013170
August 18, 2013174
August 11, 2013178
August 4, 2013177
July 28, 2013175
July 21, 2013176
July 14, 2013184
July 7, 2013179
June 30, 2013176
June 23, 2013184
June 16, 2013179
June 9, 2013183
June 2, 2013195
May 26, 2013190
May 19, 2013164
May 12, 2013192
May 5, 2013190
April 28, 2013200
April 21, 2013201
April 14, 2013197
April 7, 2013202
March 31, 2013206
March 24, 2013209
March 17, 2013211
March 10, 2013216
March 3, 2013211
February 24, 2013210
February 17, 2013221
February 10, 2013221
February 3, 2013221
January 27, 2013217
January 20, 2013224
January 13, 2013213
January 6, 2013233
December 30, 2012219
December 23, 2012218
December 16, 2012223
December 9, 2012227
December 2, 2012229
November 25, 2012232
November 18, 2012238
November 11, 2012232
November 4, 2012234
October 28, 2012246
October 21, 2012238
October 14, 2012249
October 7, 2012249
September 30, 2012248
September 23, 2012253
September 16, 2012262
September 9, 2012249
September 2, 2012252
August 26, 2012260
August 19, 2012263
August 12, 2012262
August 5, 2012263
July 29, 2012262
July 22, 2012264
July 15, 2012271
July 8, 2012267
July 1, 2012273
June 24, 2012282
June 17, 2012282
June 10, 2012280
June 3, 2012286
May 27, 2012286
May 20, 2012295
May 13, 2012301
May 6, 2012306
April 29, 2012314
April 22, 2012306
April 15, 2012313
April 8, 2012308
April 1, 2012311
March 25, 2012314
March 18, 2012320
March 11, 2012323
March 4, 2012326
February 26, 2012340
February 19, 2012339
February 12, 2012348
February 5, 2012340
January 29, 2012346
January 22, 2012353
January 15, 2012366
January 8, 2012360
January 1, 2012361
December 25, 2011363
December 18, 2011391
December 11, 2011816
December 4, 2011959
November 27, 2011415
November 20, 2011417
November 13, 2011409
November 6, 2011403
October 30, 2011413
October 23, 2011411
October 16, 2011401
October 9, 2011417
October 2, 2011413
September 25, 2011418
September 18, 2011423
September 11, 2011426
September 4, 2011463
August 28, 2011431
August 21, 2011423
August 14, 2011446
August 7, 2011441
July 31, 2011450
July 24, 2011503
July 17, 2011449
July 10, 2011460
July 3, 2011463
June 26, 2011463
June 19, 2011467
June 12, 2011480
June 5, 2011479
May 29, 2011484
May 22, 2011483
May 15, 2011486
May 8, 2011492
May 1, 2011502
April 24, 2011494