condition mean min max 4 h after light 6.222265 5.15678 7.28775 8 h after light 5.309324999999999 4.71634 5.90231 12 h after light 5.088335 5.08416 5.09251 4 h after dark 6.19878 5.22788 7.44825 8 h after dark 6.88649 6.58934 7.09245 12 h after dark 7.0957099999999995 6.6884 7.40594