condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.01620965 0.012399 0.0200203 12 h after light 0.023239 0.0167884 0.0296896 4 h after dark 0.0100235 0.0 0.0300705 8 h after dark 0.045859533333333334 0.0 0.0816334 12 h after dark 0.018215266666666667 0.0 0.0546458