condition mean min max 4 h after light 4.0923 3.23762 4.94698 8 h after light 4.324035 3.9654 4.68267 12 h after light 4.14731 3.86822 4.4264 4 h after dark 5.749145 5.17152 6.32677 8 h after dark 4.7577 4.7026 4.8128 12 h after dark 4.3252500000000005 3.77259 4.87791