Question: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The provisional results of the 2014 Myanmar Census show that the total population is 51,419,420. This figure includes an estimated 1,206,353 persons in parts of northern Rakhine State, Kachin State and Kayin State who were not counted. People who were out of the country at the time of the census are not included in these figures. There are over 600,000 registered migrant workers from Myanmar in Thailand, and millions more work illegally. Burmese migrant workers account for 80% of Thailand's migrant workers. Population density is 76 per square kilometre (200/sq mi), among the lowest in Southeast Asia."?
Answer:
Where are there significant portions of workers?