condition mean min max 4 h after light 0.6522665 0.497266 0.807267 8 h after light 4.024654999999999 4.01913 4.03018 12 h after light 4.494434999999999 4.48889 4.49998 4 h after dark 2.86308 2.20374 3.55491 8 h after dark 0.8840373333333333 0.538228 1.53795 12 h after dark 0.6562393333333333 0.536845 0.799025