  The energy dependence of Tsallis statistics parameters is presented for
charged pions produced at beam energies ranging between 6.3 GeV and 7 TeV. It
is found that deviations from Boltzmann statistics are monotonically growing
with beam energy. This may be attributed to the dominance of low $x$ at higher
energies leading to the power-like NLO QCD spectra for which Tsallis statistics
may serve as effective theory. At the same time, for larger $x$ at lower beam
energies the Gaussian falloff of transverse-momentum-dependent distributions is
crucial and correspondent effective description is provided by the Boltzmann
distribution.
