The Department of Homeland Security said about half of the resident non-immigrants (980,000) were citizens of Asian countries, including India (23 percent), China (11 per cent), South Korea (eight percent) and Japan (five percent).

Europe and North America comprised another 26 percent, led by Canada (six percent) and Mexico (five percent).

The five leading countries accounted for over 50 per cent of the total, it said. According to the report, temporary workers made up much larger portions of the non-immigrant populations from Mexico (78 percent), India (74 percent), Canada (67 percent) and the United Kingdom (65 percent) than from all countries combined (45 percent).

Non-immigrants from Saudi Arabia, China and Korea were more likely to be in the U.S. on student visas, the report said.

More than 90 percent of resident non-immigrants with Saudi Arabian citizenship were students, as were 73 percent of Chinese and 67 percent of South Koreans.
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