condition mean min max 4 h after light 161.225436 151.897176 170.553696 8 h after light 159.89155849999997 152.247618 167.535499 12 h after light 152.2585145 146.321216 158.195813 4 h after dark 183.49436550000001 156.987443 210.001288 8 h after dark 233.54348800000002 200.58723 266.499746 12 h after dark 135.731098 135.731098 135.731098