Chemical and orbital properties for the RR Lyrae variable, BDBS red clump star, and APOGEE red giant datasets together with the results from the simulation. The figure shows the dependence of the percentage of retrograde stars as a function of their [Fe/H]. The light blue squares represent metallicity bins for the RR Lyrae sample. The green pentagons and yellow circles represent BDBS stars and APOGEE red giants, respectively. The gray line denotes a fraction of retrograde (negative ${\mathrm{\Omega }}_{\phi }^{\text{rot}}$) stellar particles in the simulation as a function of age (upper axis).