condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0752255 0.0 0.150451 2 h after dark 0.0678465 0.0 0.135693 4 h after dark 0.12787785 0.0657357 0.19002 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0