Alright, Week 22 then, another try at formatting:
Week 01 (01/05-07/05): _ 563 pre-orders (0-563)
Week 02 (08/05-14/05): __ 82 pre-orders (563-645)
Week 03 (15/05-21/05): __ 53 pre-orders (645-698)
Week 04 (22/05-28/05): __ 28 pre-orders (698-726)
Week 05 (29/05-04/06): __ 29 pre-orders (726-755)
Week 06 (05/06-11/06): __ 16 pre-orders (755-771)
Week 07 (12/06-18/06): __ 16 pre-orders (771-787)
Week 08 (19/06-25/06): __ 15 pre-orders (787-793)
Week 09 (26/06-02/07): __ 10 pre-orders (793-803)
Week 10 (03/07-09/07): __ 20 pre-orders (803-823)
Week 11 (10/07-16/07): __ 10 pre-orders (823-833)
Week 12 (17/07-23/07): ___ 7 pre-orders (833-840)
Week 13 (24/07-30/07): __ 12 pre-orders (840-852)
Week 14 (31/07-06/08): ___ 7 pre-orders (852-859)
Week 15 (07/08-13/08): ___ 4 pre-orders (859-863)
Week 16 (14/08-20/08): __ 12 pre-orders (863-875)
Week 17 (21/08-27/08): ___ 2 pre-orders (875-877)
Week 18 (28/08-03/09): ___ 1 pre-order_ (877-878)
Week 19 (04/09-10/09): ___ 9 pre-orders (878-887)
Week 20 (11/09-17/09): __ 11 pre-orders (887-898)
Week 21 (18/09-24/09): ___ 6 pre-orders (898-904)
Week 22 (25/09-01/10): _ _ -8 pre-orders (904-896)
WHAT HAPPEN?
SOMEONE SET UP US TEH BOMB.
WE GET SIGNAL:
https://pyra-handheld.com/boards/threads/the-numbers-image-thread.77461/page-20#post-1393881
So actually a splendid week disregarding the purge of pre-orders with missing payment. There were 22 of those but followed by three new pre-orders in the hours after that, so I am suspecting that a few of the 14 new pre-orders this week are just replacements by the same people.
Edit: 15 new pre-orders actually, there was also a regular cancellation.
Also, EvilDragon finally admitted that the remaining pre-pre-orders number is out of date (surprise!):
https://pyra-handheld.com/boards/threads/the-numbers-image-thread.77461/page-21#post-1393926