condition mean min max 4 h after light 1.3890275 0.846215 1.93184 8 h after light 1.583125 1.42489 1.74136 12 h after light 1.5436299999999998 1.22094 1.86632 4 h after dark 3.9301633333333332 3.37791 4.63164 8 h after dark 2.42516 2.38896 2.45361 12 h after dark 2.4124166666666667 1.82714 2.86062