Drop chances

ItemStage 10Stage 50Stage 100Avg count
Bone11%11%11%0.21
Rotting Flesh8.8%8.8%8.8%0.17
Cornmeal7.6%7.6%7.6%0.11
Old Sham Sandwich7.5%7.5%7.5%0.07
Potato6.3%6.3%6.3%0.09
Ear of Corn5.9%5.9%5.9%0.09
Can of Tuna3.4%3.4%3.4%0.03
Can of Stock3.4%3.4%3.4%0.03
Can of Pasta3.4%3.4%3.4%0.03
Large Beef Ration3.4%3.4%3.4%0.03
Yucca Fruit3.3%3.3%3.3%0.05
Can of Chili3.3%3.3%3.3%0.03
Lamb Rations3.3%3.3%3.3%0.03
Can of Peas3.3%3.3%3.3%0.03
Can of Salmon3.3%3.3%3.3%0.03
Can of Dog Food3.2%3.2%3.2%0.03
Can of Sham3.1%3.1%3.1%0.03
Charred Meat1.8%1.8%1.8%0.02
Can of Pears1.7%1.7%1.7%0.02
Can of Cat Food1.7%1.7%1.7%0.02
Chicken Ration1.7%1.7%1.7%0.02
Can of Miso1.7%1.7%1.7%0.02
Chicken Soup1.6%1.6%1.6%0.02
Pumpkin0.95%0.95%0.95%0.01
Empty Water Jar0.88%0.88%0.88%0.01
Sham Chowder0.85%0.85%0.85%0.01
Animal Fat0.83%0.83%0.83%0.01
Meat Stew0.81%0.81%0.81%0.01
Blueberries0.81%0.81%0.81%0.02
Blueberry Pie0.81%0.81%0.81%0.01
Hobo Stew0.79%0.79%0.79%0.01

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