condition mean min max 0 h after light 13.17985 12.3813 13.9784 4 h after light 30.246 26.0494 34.4426 8 h after light 43.185249999999996 43.0116 43.3589 4 h after dark 28.249699999999997 21.2317 35.2677 8 h after dark 19.716050000000003 16.7861 22.646 12 h after dark 15.067250000000001 12.8633 17.2712