condition mean min max 4 h after light 54.447606500000006 38.581566 70.313647 8 h after light 61.47905900000001 44.576597 78.381521 12 h after light 56.6790245 53.515165 59.842884 4 h after dark 102.35837699999999 72.054433 132.662321 8 h after dark 103.628483 100.921423 106.335543 12 h after dark 99.090749 99.090749 99.090749