condition mean min max 4 h after light 5.679267 3.342386 9.265477 8 h after light 18.454358 4.623149 42.13628 12 h after light 9.309947666666666 5.268773 12.07265 16 h after light 13.920922333333333 3.895207 26.94555 4 h after dark 7.885074333333333 6.460767 8.605106 8 h after dark 3.445260666666667 2.825888 4.2899400000000005