Drop chances

ItemStage 10Stage 50Stage 100Avg count
Scrap Polymers26%26%26%0.56
Cloth Fragment26%26%26%0.56
Paper25%25%25%0.56
Vitamins24%24%24%0.27
Painkillers24%24%24%0.27
Steroids21%21%21%0.22
Medical Journal19%19%19%0.19
Furious Fists18%18%18%0.18
Blood Bag17%17%17%0.18
Sewing Kit17%17%17%0.18
First Aid Bandage17%17%17%0.18
Bandage17%17%17%0.17
Aloe Cream13%13%13%0.14
Recog9.0%9.0%9.0%0.09
First Aid Kit8.9%8.9%8.9%0.09
Fort Bites8.9%8.9%8.9%0.09
Plaster Cast7.1%7.1%7.1%0.07
Beaker5.7%5.7%5.7%0.06
Jar of Honey5.5%5.5%5.5%0.06
Splint5.4%5.4%5.4%0.06
Herbal Antibiotics1.7%1.7%1.7%0.02
Bar Brawling Vol 61.1%1.1%1.1%0.01
Bar Brawling Vol 41.0%1.0%1.0%0.01
Bar Brawling Vol 71.0%1.0%1.0%0.01
Bar Brawling Vol 11.0%1.0%1.0%0.01
Bar Brawling Vol 31.0%1.0%1.0%0.01
Bar Brawling Vol 51.0%1.0%1.0%0.01
Bar Brawling Vol 21.0%1.0%1.0%0.01
Antibiotics0.50%0.50%0.50%0.01

Average count per open at loot stage 50. From 40,000 simulated opens per stage; perks that raise loot are not counted.