Lyapunov exponent distributions for the local halo sample in the fiducial potential with various bar pattern speeds, Ω_b = [−32.5,−35, −37.5,−40,−42.5] km s⁻¹ kpc⁻¹, at a fixed bar angle, −25 degrees. The grey lines show all cases, while the blue lines show one pattern speed as indicated in the legend. For comparison, the red dotted line shows the distribution for a static bar (Ω_b = 0).