http://www.comichron.com/monthlycomi...7/2017-12.html
3 1 Phoenix Resurrection Return of Jean Grey 1 145,057
19 16 Weapon X 12 48,912
32 27 X-Men Gold 17 38,148
33 28 Old Man Logan 32 38,018
36 30 X-Men Gold 18 37,616
38 13 X-Men Grand Design 1 37,041
41 37 Astonishing X-Men 6 35,437
42 39 X-Men Blue 17 34,408
44 41 X-Men Blue 18 33,283
46 44 Deadpool vs. Old Man Logan 3 32,279
48 45 Despicable Deadpool 290 32,024
52 51 All New Wolverine 28 29,512
60 54 Despicable Deadpool 291 28,583
74 65 Spider-Man Deadpool 25 26,080
80 68 Generation X 85 24,953
89 91 Champions 15 23,190
90 82 Uncanny Avengers 30 23,044
103 101 Cable 152 20,720
108 273 True Believers Enter The Phoenix 19,104
118 121 Jean Grey 10 16,911
126 321 True Believers Phoenix Bizarre Adventures 14,054
133 333 True Believers Phoenix Presents Cyclops & Marvel Girl 12,787
135 334 True Believers Phoenix What If 12,714
136 338 True Believers Phoenix Returns 12,571
137 342 True Believers Phoenix Presents Wedding Summers & Grey 12,418
139 344 True Believers Death of Phoenix 12,311
141 348 True Believers Phoenix Classic 11,885
142 142 Iceman 8 11,847
144 351 True Believers Phoenix Origins 11,745
156 355 True Believers Phoenix Presents Jean Grey vs. Sabretooth 11,126
Damn, that's a lot of True believers, lol.