condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.052946 0.0 0.158838 12 h after light 0.017399366666666666 0.0 0.0521981 4 h after dark 0.0128282 0.0 0.0384846 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0