The Hall resistivity has been measured in single crystal at low temperatures (0.1-4.2 K) for magnetic field -axis up to 26 T. For temperatures , the Hall coefficient goes asymptotically to zero, indicating a compensated-metal ground state. Since the Hall resistivity does not show an anomaly at the metamagnetic crossover of 20 T in the Fermi-liquid state below 0.8 K, a drastic change of the Fermi surface is unlikely at the crossover. A change of the skew scattering contribution to the Hall effect has been observed around 6 and 2 K, i.e. near respectively the magnetic ordering temperature and the temperature below which the Fermi-liquid state appears.