condition mean min max 4 h after light 11.859963 11.402153 12.317773 8 h after light 11.3500365 11.142005 11.558068 12 h after light 11.565758500000001 11.016557 12.11496 4 h after dark 13.1441175 12.881974 13.406261 8 h after dark 10.694138500000001 9.830209 11.558068 12 h after dark 14.890633 14.890633 14.890633