Ratio of particle yields to \pix and \kx as a function of the collision energy \cme (GeV). Results from ALICE  are compared with those from CMS  at the same energies, and with those from STAR  at \sppg{200} and PHENIX  at \sppg{62.4} obtained at BNL RHIC. The CMS data points are slightly shifted horizontally for clarity. Open boxes represent statistical and systematic uncertainties summed in quadrature. Red data points are ALICE measurements for \sppt{13}