condition mean min max 3 h after light 0.3591416666666667 0.308173 0.431505 6 h after light 0.38425733333333334 0.278903 0.466766 9 h after light 0.388255 0.325484 0.442041 12 h after light 0.6847015 0.362433 0.89161 3 h after dark 0.5268356666666667 0.279426 0.72989 6 h after dark 0.533207 0.227035 0.74021 9 h after dark 0.322287 0.279751 0.369207 12 h after dark 0.454245 0.345689 0.562801