condition mean min max 3 h after light 81.1581 79.9248 83.085 6 h after light 41.2752 35.015 46.3046 9 h after light 16.975733333333334 13.9604 20.7892 12 h after light 11.4323 11.1481 11.6199 3 h after dark 23.4876 19.2186 27.0249 6 h after dark 51.3259 46.8178 56.2087 9 h after dark 89.23026666666667 73.8381 97.5294 12 h after dark 84.85156666666667 75.6897 96.5643