condition mean min max 4 h after light 0.18648199999999998 0.157745 0.215219 8 h after light 0.1201025 0.111829 0.128376 12 h after light 0.3277015 0.284689 0.370714 4 h after dark 0.9530195 0.916918 0.989121 8 h after dark 0.897104 0.777698 1.01651 12 h after dark 0.4401175 0.3702 0.510035