condition mean min max 0 h after light 68.04765 67.2997 68.7956 4 h after light 36.19975 35.7687 36.6308 8 h after light 32.50085 29.9226 35.0791 4 h after dark 68.92375 59.942 77.9055 8 h after dark 60.233850000000004 59.5503 60.9174 12 h after dark 52.66715 47.6489 57.6854