condition mean min max 4 h after light 159.741599 118.635757 200.847441 8 h after light 135.3390325 130.369085 140.30898 12 h after light 176.81010700000002 169.157388 184.462826 4 h after dark 321.4517795 191.36715 451.536409 8 h after dark 352.2452345 290.771798 413.718671 12 h after dark 227.340736 227.340736 227.340736