from a Reddit post by charlym at https://www.reddit.com/r/pathofexile/comments/s8o1ip/loot_from_300_uber_elder/
https://www.sirgog.com/wp-content/uploads/2022/01/uber-elder-drop-rates.xlsx – spreadsheet
https://www.sirgog.com/wp-content/uploads/2022/01/Uber-Elder-Drop-Rates.pptx – full presentation (Powerpoint format)