condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.02021275 0.0 0.0404255 4 h after dark 0.0 0.0 0.0 8 h after dark 0.016901433333333334 0.0 0.0507043 12 h after dark 0.0 0.0 0.0