The data represent annual values of the glacier mass balance measured with the direct glaciological method. The mass balance is calculated from ablation of ice measured at about 50 stakes and accumulation of snow measured in about 9 pits for the mass balance year from 1 October to 30 September of the following year. The data comprises the glacier area, the net mass balance for the total glacier area as well as specified for the ablation and accumulation area, the altitude of the equilibrium line (ELA) and the specific mass balance.