condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.052277 0.0 0.156831 12 h after light 0.08872066666666667 0.0 0.136136 4 h after dark 0.048217 0.0 0.144651 8 h after dark 0.09504566666666665 0.0 0.285137 12 h after dark 0.0 0.0 0.0