condition mean min max 4 h after light 9.792636 9.404861 10.180411 8 h after light 10.25933 9.933395 10.585265 12 h after light 9.131783500000001 8.964609 9.298958 4 h after dark 10.2987155 9.036083 11.561348 8 h after dark 10.33756 9.957348 10.717772 12 h after dark 10.475701 10.475701 10.475701