condition mean min max 2 h after light 9.25825 4.41933 11.9372 6 h after light 8.160775 4.55879 11.6668 10 h after light 8.059155 2.59725 11.9332 14 h after light 9.584109999999999 5.93249 20.5157 18 h after light 8.53153 4.41557 11.6574 2 h after dark 3.2589353333333335 0.540987 7.13189