condition mean min max 4 h after light 73.0974 66.9691 79.2257 8 h after light 62.4615 62.0514 62.8716 12 h after light 78.83855 77.4825 80.1946 4 h after dark 93.53115 87.4675 99.5948 8 h after dark 87.81425 86.6915 88.937 12 h after dark 87.85955 84.222 91.4971