condition mean min max 4 h after light 55.004571999999996 50.385691 59.623453 8 h after light 57.8817375 47.78311 67.980365 12 h after light 59.96324249999999 53.530679 66.395806 4 h after dark 57.916242999999994 52.561147 63.271339 8 h after dark 58.76844199999999 53.137555 64.399329 12 h after dark 76.647608 76.647608 76.647608