For each week beginning on a given date, the figures show the number of sites that reported they are using the drupal 5.1 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, 201426
March 30, 201429
March 23, 201434
March 16, 201432
March 9, 201434
March 2, 201433
February 23, 201432
February 16, 201430
February 9, 201433
February 2, 201433
January 26, 201429
January 19, 201429
January 12, 201428
January 5, 201431
December 29, 201334
December 22, 201333
December 15, 201329
December 8, 201334
December 1, 201332
November 24, 201334
November 17, 201333
November 10, 201331
November 3, 201336
October 27, 201335
October 20, 201334
October 13, 201335
October 6, 201334
September 29, 201334
September 22, 201335
September 15, 201338
September 8, 201336
September 1, 201335
August 25, 201336
August 18, 201337
August 11, 201334
August 4, 201336
July 28, 201340
July 21, 201336
July 14, 201337
July 7, 201336
June 30, 201335
June 23, 201337
June 16, 201336
June 9, 201337
June 2, 201340
May 26, 201338
May 19, 201336
May 12, 201341
May 5, 201343
April 28, 201343
April 21, 201343
April 14, 201340
April 7, 201341
March 31, 201343
March 24, 201343
March 17, 201342
March 10, 201342
March 3, 201344
February 24, 201345
February 17, 201343
February 10, 201347
February 3, 201349
January 27, 201349
January 20, 201350
January 13, 201348
January 6, 201351
December 30, 201250
December 23, 201249
December 16, 201253
December 9, 201252
December 2, 201250
November 25, 201253
November 18, 201254
November 11, 201252
November 4, 201257
October 28, 201254
October 21, 201253
October 14, 201254
October 7, 201260
September 30, 201257
September 23, 201257
September 16, 201254
September 9, 201253
September 2, 201255
August 26, 201254
August 19, 201257
August 12, 201257
August 5, 201260
July 29, 201259
July 22, 201257
July 15, 201254
July 8, 201254
July 1, 201260
June 24, 201260
June 17, 201256
June 10, 201261
June 3, 201269
May 27, 201264
May 20, 201264
May 13, 201261
May 6, 201266
April 29, 201262
April 22, 201264
April 15, 201262
April 8, 201267
April 1, 201269
March 25, 201268
March 18, 201267
March 11, 201268
March 4, 201266
February 26, 201273
February 19, 201268
February 12, 201273
February 5, 201266
January 29, 201267
January 22, 201276
January 15, 201270
January 8, 201276
January 1, 201269
December 25, 201168
December 18, 201169
December 11, 201171
December 4, 201165
November 27, 201171
November 20, 201168
November 13, 201171
November 6, 201169
October 30, 201170
October 23, 201170
October 16, 201169
October 9, 201170
October 2, 201170
September 25, 201169
September 18, 201175
September 11, 201174
September 4, 201177
August 28, 201172
August 21, 201173
August 14, 201173
August 7, 201175
July 31, 201177
July 24, 201182
July 17, 201184
July 10, 201185
July 3, 201180
June 26, 201177
June 19, 201179
June 12, 201182
June 5, 201178
May 29, 201186
May 22, 201178
May 15, 201174
May 8, 201180
May 1, 201177
April 24, 201181