condition mean min max 0 h after light 49.43915 47.2695 51.6088 4 h after light 41.1561 36.3207 45.9915 8 h after light 42.984350000000006 41.0519 44.9168 4 h after dark 64.2423 61.4266 67.058 8 h after dark 60.0625 58.7002 61.4248 12 h after dark 45.389849999999996 44.4902 46.2895