Weekly weapons Scrap Exchange updates

@Viancee_IlI

sry my hunglish

Based on Maria's battlepack theory, I present an interesting statistics.
According to Maria's battlepack theory, 18 self-loading rifle skins are not dropped by the battlepack.
Nowadays, these 18 self-loading rifle skins can only be obtained through a scrap exchange (There are 18 self-loading rifle "exhange exclusive" skins).

I was curious how many times Dice put these 18 self-loading rifle "exhange exclusive" skins into the exchange.
What could be the rarest, "hardest to get" self-loading rifle skin in the BF1 game?
I had three "exchange tracking" databases to help me (Battlefield 1 fandom page's exhcange tracking, Jaqub Ajmal ex-Dice Producer's Twitter tracking, and my, HUN_gattaca_lg's exchange tracking).

Battlefield 1 fandom page's exhcange tracking:
https://battlefield.fandom.com/wiki/Battlepack/Battlefield_1_Retired_Series
-from the first scrap exchange (Exchange #23 - scrap exchange is new feature in BF1 - Added on March 14th, 2017, and taken off the rotation March 24th, 2017)
-to EXCHANGE #111 (Added on October 29th, 2018 taken off the rotation November 5th, 2018)

Jaqub Ajmal ex-Dice Producer's Twitter tracking:
https://twitter.com/search?q=Scrap%20Exchange%20%20(from%3AJaqubAjmal)&src=recent_search_click&f=live
-from November 5, 2018
-to September 28, 2020

my (HUN_gattaca_lg) exchange tracking with my image database (in Battlefield 1 subreddit and in EA Answers HQ BF1 topic)
-from October 5, 2020
-to November 27, 2023

These 18 self-loading rifle "exhange exclusive" skins are arranged in ascending order according to the number of occurrences in Exchange.
I use year.month.day date format.
I think it is noticeable based on my statistics, that the appearance of the skins in the exhange is not completely random.
Self-loading rifle skins for Battlefield 1 Premium Pass's weapons (TSNP= They shall not pass DLC, TSAR= In the Name of the Tsar DLC, TIDE= Turning Tides DLC, APOC= Apocalypse DLC) appear less often in the exchange than base game weapon's skins (most BF1 players only have the base game without DLCs, and Dice favors them).

my statistics:

4x - Flora Sandes skin for Howell Automatic (APOC):
EXCHANGE #109(Added on October 15th, 2018, taken off the rotation October 22nd, 2018), 2020.03.09, 2022.02.21, 2022.04.04

4x - Auby-les-Hesdin skin for General Liu Rifle (TSAR):
EXCHANGE #109(Added on October 15th, 2018, taken off the rotation October 22nd, 2018), 2020.01.27, 2022.02.28, 2022.05.09

4x - Marasti skin for Fedorov Avtomat (TSAR):
EXCHANGE #108(Added on October 8th, 2018, taken off the rotation October 15th, 2018), 2020.05.18, 2022.02.28, 2022.05.09

4x - Noyelles-sur-Mer skin for General Liu Rifle (TSAR):
2018.12.17, 2020.01.27, 2022.02.28, 2022.05.09

4x - Oituz skin for Fedorov Avtomat (TSAR):
2018.12.17, 2020.05.18, 2022.02.28, 2022.05.09

4x - Chanson de Craonne skin for RSC 1917 (TSNP):
2018.12.17, 2019.09.02, 2022.05.16, 2022.06.20

4x - Tondern Raid skin for Farquhar-Hill (TIDE):
EXCHANGE #109(Added on October 15th, 2018, taken off the rotation October 22nd, 2018), 2019.04.29, 2022.03.07, 2023.01.30

4x - Testament of Youth skin for Farquhar-Hill (TIDE):
2018.11.05, 2019.04.29, 2022.03.07, 2023.01.30

4x - Blutigen April skin for Selbstlader M1916:
Road to Battlefield V reward (Stage 3- Week 5, August 28, 2018), 2020.10.26, 2021.11.15, 2023.05.24

4x - Odin skin for Selbstlader M1916:
Road to Battlefield V reward (Stage 5- Week 3, October 23, 2018), 2020.10.26, 2021.11.15, 2023.05.24

5x - The Dead Kings skin for Howell Automatic (APOC):
2018.12.17, 2019.04.24, 2020.03.09, 2022.02.21, 2022.04.04

5x - De Scévola skin for RSC 1917 (TSNP):
EXCHANGE #111(Added on October 29th, 2018, taken off the rotation November 5th, 2018), 2019.02.25, 2019.09.02, 2022.05.16, 2022.06.20

5x - The Arneson skin for Autoloading 8:
Road to Battlefield V reward (Stage 2-Week 2, July 3, 2018), 2020.08.31, 2021.03.22, 2022.08.29, 2023.05.08

6x - Das Jagdschloss Rominten skin for Selbstlader 1906:
Road to Battlefield V reward (Stage 3-Week 2, August 7, 2018), 2020.11.23, 2021.01.25, 2022.04.25, 2022.08.15, 2023.04.03

7x - Ah Tabai skin for Mondragón:
Road to Battlefield V reward (Stage 4- Week 1, September 9, 2018), 2020.08.10, 2021.06.14, 2021.10.11, 2022.09.26, 2022.11.21, 2023.08.21

8x - The Kirkpatrick skin for Cei-Rigotti:
Battlefest reward (from September 19 to September 30, 2017), 2020.06.22, 2022.08.22, 2022.09.19, 2023.01.23, 2023.03.13, 2023.06.12, 2023.09.25

8x - La Bizzarrìa skin for Cei-Rigotti:
Road to Battlefield V reward (Stage 3- Week 1, July 31, 2018), 2020.06.22, 2022.08.22, 2022.09.19, 2023.01.23, 2023.03.13, 2023.06.12, 2023.09.25

8x - The Old Drum skin for M1907 SL:
Road to Battlefield V reward (Stage 4 - Week 2, 2018), 2020.04.13, 2022.02.07, 2022.04.11, 2022.05.02, 2023.03.20, 2023.06.12, 2023.11.27