condition mean min max 0 h after light 4.84634 4.39436 5.29832 2 h after light 6.147425 6.04565 6.2492 4 h after light 8.873335 7.98321 9.76346 8 h after light 17.60245 16.277 18.9279 12 h after light 12.0418 11.7105 12.3731 2 h after dark 8.910245 8.5914 9.22909 4 h after dark 7.79183 7.3055 8.27816 8 h after dark 7.627269999999999 7.18331 8.07123 12 h after dark 4.581835 3.69005 5.47362