condition mean min max 0 h after light 0.6052265 0.589972 0.620481 4 h after light 0.096615 0.0 0.19323 8 h after light 0.0 0.0 0.0 4 h after dark 0.374583 0.190413 0.558753 8 h after dark 0.264837 0.0 0.529674 12 h after dark 0.372584 0.189386 0.555782