In 1914 the majority of the Christian population of the Florina district was recorded as Bulgarian (59%), 70% of whom were monolingual in Bulgarian only. The 1920s was a period of deportation and migration, during which the Greek government aimed the systematic removal of the Bulgarophone population. In 1925, according to the Prefect of Florina 52% of the population were schismatics(up from about 20% in 1886), 25% were Patriarchists, 15% were refugees, 6% were Vlachs and 3% were indigenous Greeks. According to government source in 1925 there were 45,527 Slav speakers, of whom 34,234 former Exarchists and 11,293 former Patriarchists; 7449 Greek refugees; 3590 Vlachs; 1882 native Greeks; 349 Jews and 27 Muslims Albanians. According to Kollopoulos in 1925 the recorded Slav Macedonians were 64,465 and constituted 64% of the population of the district of Florina, of whom 28,673 were schismatic.