condition mean min max 4 h after light 0.076571 0.0 0.229713 8 h after light 0.289957 0.0 0.439461 12 h after light 0.188747 0.0 0.314904 4 h after dark 0.309771 0.0 0.594713 8 h after dark 0.15386066666666667 0.0 0.329783 12 h after dark 0.27415133333333336 0.147809 0.520117