condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.06626266666666666 0.0 0.198788 12 h after light 0.068598 0.0 0.205794 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.03579433333333334 0.0 0.107383