condition mean min max 4 h after light 0.34206233333333336 0.0 0.672351 8 h after light 0.420503 0.165462 0.83677 12 h after light 0.2286148 0.0770834 0.366644 4 h after dark 0.17422423333333334 0.0 0.455093 8 h after dark 0.22708299999999998 0.20267 0.253557 12 h after dark 0.15979966666666667 0.118811 0.227289