condition mean min max 2 h after light 0.4939811333333333 0.0961108 0.882384 6 h after light 0.5966386666666667 0.40184 0.718271 10 h after light 0.747023 0.329218 1.82386 14 h after light 0.55703705 0.0992913 0.867908 18 h after light 0.9098358333333333 0.559771 1.35657 2 h after dark 0.6212179999999999 0.205857 1.42461