condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.522965 0.0 1.04593 12 h after light 0.54161 0.0 1.08322 4 h after dark 0.0 0.0 0.0 8 h after dark 0.000473623 0.0 0.000810264 12 h after dark 0.0 0.0 0.0