condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.517964 0.0 0.864373 12 h after light 0.378535 0.0 0.883366 4 h after dark 0.0 0.0 0.0 8 h after dark 0.17610466666666666 0.0 0.528314 12 h after dark 0.09258133333333333 0.0 0.277744