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 Year | Posts | % change
------+-------+----------
 2016 | 31578 | 
 2017 | 39656 | +25.6%
 2018 | 35636 | -10.1%

+------------------------------------------+------------+------------+
| Site Name                                | Post Count | % of Total |
+------------------------------------------+------------+------------+
| Stack Overflow                           |       6892 | 17.3795%   |
| Ask Ubuntu                               |       5237 | 13.2061%   |
| Super User                               |       3294 | 8.3064%    |
| Drupal Answers                           |       2058 | 5.1896%    |
| Ask Different                            |       1853 | 4.6727%    |
| Graphic Design                           |       1687 | 4.2541%    |
| Meta Stack Exchange                      |       1468 | 3.7018%    |
| Astronomy                                |        620 | 1.5634%    |
| English Language & Usage                 |        600 | 1.5130%    |
| Bitcoin                                  |        561 | 1.4147%    |
| Role-playing Games                       |        559 | 1.4096%    |
| WordPress Development                    |        483 | 1.2180%    |
| Puzzling                                 |        450 | 1.1348%    |
| Web Applications                         |        437 | 1.1020%    |
| Travel                                   |        416 | 1.0490%    |
| The Workplace                            |        362 | 0.9129%    |
| Arqade                                   |        324 | 0.8170%    |
| Android Enthusiasts                      |        323 | 0.8145%    |
| Personal Finance & Money                 |        320 | 0.8069%    |
| Mathematics                              |        309 | 0.7792%    |
+------------------------------------------+------------+------------+

2018 has mostly followed 2017's line in this regard, though spam has been a little more spread out through the day (i.e. less confined to peak hours). Behold - the chart returns!

_{The y axis reads: proportion of spam posts (in relation to all spam posts) per group of hour (y values in each series add up to 1, i.e., 100%).}

2018 has mostly followed 2017's line in this regard, though spam has been a little more spread out through the day (i.e. less confined to peak hours). Behold - the chart returns (the y axis represents the proportion of spam posts created in each hour group).

_{The y axis reads: proportion of spam posts (in relation to all spam posts) per group of hour (y values in each series add up to 1, i.e., 100%).}