df <- tribble(
~capacity1, ~capacity2, ~capacity3, ~capacity4, ~capacity5, ~capacity6, ~capacity7, ~capapcity8,
75, 88, 85, 71, 98, 76, 71, 57,
80, 51, 84, 72, 59, 81, 70, 64,
54, 65, 90, 66, 93, 88, 77, 59,
59, 87, 94, 75, 74, 53, 56, 87,
52, 55, 64, 77, 50, 64, 83, 87,
33,22,66,67,99,87,40,90,)