condition mean min max 0 h after light 64.8959 61.7318 68.06 4 h after light 77.53604999999999 77.3137 77.7584 8 h after light 90.0121 84.0265 95.9977 4 h after dark 87.90885 86.0385 89.7792 8 h after dark 80.86349999999999 75.8624 85.8646 12 h after dark 61.844699999999996 58.3244 65.365