condition mean min max 4 h after light 0.589523 0.394644 0.784402 8 h after light 0.415664 0.411747 0.419581 12 h after light 0.541678 0.493027 0.590329 4 h after dark 0.783645 0.68822 0.87907 8 h after dark 0.6221785 0.607509 0.636848 12 h after dark 0.6780275 0.611227 0.744828