In relation to internal migration, according to the 1910 census, 300,000 or almost 10% of the ethnic Bulgarians were born in another Bulgarian municipality than the one they were enumerated in. The same data shows that the foreign-born ethnic Bulgarians numbered 78,000, or 2% of them, most numerous of whom were the 61,000 Ottoman Empire-born, 9,000 Romanian-born and by less than 2,000 Austro-Hungarian Empire, Serbian and Russian-born. By the 1926 census, there had been 253,000 refugees with granted households and land or citizenship but with many more in towns of uncertain number. 35% came from Eastern Thrace, 30% came from Aegean Macedonia, another 18% from Western Thrace, 8% from Dobruja, 4% from the Western Outlands, 3% from Asia Minor, and 2% from Vardar Macedonia. They constituted 6% of the countrys population. In 1940, 70,000 Bulgarians were exchanged from Northern Dobruja. The total number of refugees in 1878-1940 is estimated at between 700,000 and 1,200,000.

Question: Of the foreign-born ethnic Bulgarians, who had the higher population, Ottoman Empire-born, or Romanian-born?
Answer: Ottoman Empire-born

Question: How many percent of people were not born in another Bulgarian municipality than the one they were enumerated in?
Answer: 90

Question: How many percent of people were not foreign-born ethnic Bulgarians?
Answer: 98

Question: How many percent of refugees were not from Eastern Thrace?
Answer: 65

Question: How many percent of refugees were not from Aegean Macedonia?
Answer: 70

Question: How many percent of refugees were not from Western Thrace?
Answer: 82

Question: How many percent of refugees were not from Dobruja?
Answer: 92

Question: How many percent of refugees were not from the Western Outlands?
Answer: 96

Question: How many percent of refugees were not from Asia Minor?
Answer: 97

Question: How many percent of refugees were not from Vardar Macedonia?
Answer: 98

Question: How many percent of people were not refugees?
Answer: 94

Question: Which were there of according to the 1910 census, those who were Ottoman Empire-born or those who were Romanian-born?
Answer: Ottoman Empire-born

Question: Where were there less than 2,000 born according to the 1910 census?
Answer: Austro-Hungarian Empire, Serbian, Russian

Question: Where did more of the refugees come from by the 1926 census, from Dobruja or the Western Outlands?
Answer: Dobruja

Question: How many years is the time span where the total number of refugees is estimated at between 700,000 and 1,200,000?
Answer: 62

Question: How many more of the refugees came from Eastern Thrace, by percent than from Aegean Macedonia?
Answer: 5

Question: Which three locations did less than five percent of the refugees come from?
Answer: the Western Outlands, Asia Minor, Vardar Macedonia

Question: How many years was the time span where it is estimated that the total number of refugees is estimated between 700,000 and 1,200,000?
Answer: 62

Question: How many more Ottoman Empire-born than Romanian born people were there?
Answer: 52000

Question: Which area did more people come from, Eastern Thrace or Western Thrace?
Answer: 35% came from Eastern Thrace

Question: Which areas each had less than 5% of refugees?
Answer: Western Outlands, Asia Minor, Vardar Macedonia

Question: How many areas each had over 10% of the refugees of 1926 census?
Answer: 3