condition mean min max 0 h after light 0.09205 0.0 0.1841 4 h after light 7.58928 7.12679 8.05177 8 h after light 4.33307 4.30259 4.36355 4 h after dark 0.812195 0.0 1.62439 8 h after dark 0.5764495 0.361986 0.790913 12 h after dark 0.179528 0.0 0.359056