condition mean min max 4 h after light 0.595416 0.454165 0.736667 8 h after light 0.601183 0.572621 0.629745 12 h after light 0.5812055 0.546671 0.61574 4 h after dark 0.804534 0.683624 0.879865 8 h after dark 0.7307836666666667 0.583817 0.866024 12 h after dark 0.6638676666666666 0.605872 0.760487