From 1922 to September 1939, Tarnopol served as the capital of the Tarnopol Voivodeship that consisted of 17 powiats. According to the Polish census of 1931, individuals speaking Ukrainian/Ruthenian accounted for 46% of the Tarnopol Voivodeship, while Polish speaking population consisted of 49%. The city itself consisted of 77.7% Poles, 14.0% Jewish and 8.05% Ukrainian/Ruthenian population. After World War II, Communist Party historians reported that Edward Szturm de Sztrem, the pre-war chairman of the Polish census statistical office, admitted that the census returns, particularly those from the south-east, had been altered at the executive level. Another account stated that he admitted "that officials had been directed to undercount minorities, especially those in the eastern provinces".