Wikipedia does not give the figures, but here is the quote for the illustrations above, even DM now is more concentrated, & rotation increased. "Models of rotating disc galaxies in the present day (left) and ten billion years ago (right). In the present-day galaxy, dark matter—shown in red—is more concentrated near the center and it rotates more rapidly (effect exaggerated)." added: with DM at 23% and us atomics only as 4% of all whats in the universe, Dark matter rotation, concentration carries a lot more weight than we . imho.