condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0205754 0.0 0.0617262 4 h after dark 0.0 0.0 0.0 8 h after dark 0.28838566666666665 0.0 0.540573 12 h after dark 0.0937611 0.0 0.19028