condition mean min max 4 h after light 149.6861505 84.371013 215.001288 8 h after light 69.584164 27.000597 112.167731 12 h after light 87.6419895 36.062323 139.221656 4 h after dark 277.8645065 129.310483 426.41853 8 h after dark 770.086043 506.273379 1033.898707 12 h after dark 508.451566 508.451566 508.451566