I understand that the loots in chests are odds-based. However, after raiding a huge number of End Cities I've come to the conclusion that there must be something wrong going on.

I've been to around 24 End Cities and looted at least 2 chests per city, with some cities containing 7 chests. Most of the cities contained 3 or more chests.

If we assume an average of 3 chests per End City, it gives a low total of 72 chests. There is some divergence with the rarity of the Spire Armor Trim, but it's said to be 4.8% to 6.7%.

Taking the 6.7% chance, this makes it a 0.678% chance of this happening, and with the 4.8% probability, the odds of this happening are 2.896%. And this accounts to 72 chests which I know is a low estimated number on what I have been doing.

Additional info, the End was generated in this world before 1.20 was released (before armor trims). And I have been having no issue finding the other ones (the only ones left are Rib and Spire). Even the rare Silence Armor Trim took much less time to find.

But given the odds of this happening and the fact that the End was generated in a previous version, this makes me wonder if there is something more to it. I play on Java.