Amplitudes of the relative radius oscillations $R^{2}_{\rm out,2}/R^{2}_{\rm side,0}$, $R^{2}_{\rm side,2}/R^{2}_{\rm side,0}$, $R^{2}_{\rm long,2}/R^{2}_{\rm long,0}$, and $R^{2}_{\rm os,2}/R^{2}_{\rm side,0}$ versus centrality for the $k_{\rm T}$ ranges 0.2-0.3, 0.3-0.4, 0.4-0.5, and 0.5-0.7 $\gevc$. The error bars indicate the statistical uncertainties and the square brackets show the systematic errors. The STAR data points, for 0-5%, 5-10%, 10-20%, 20-30% and 30-80% Au-Au collisions, are slightly shifted for clarity