It is also important to note that the mental disorder of psychosis is extremely rare, with about 3 in every 100 people experiencing a psychotic episode in their lifetime. The onset of psychosis, or similar disease processes like schizophrenia, usually begin in an individualâs late teens to early twenties.
1 Nationwide, 79% of undocumented immigrants are from Latin America a declining majority (52%) are from Mexico alone. 2  Most of the others are from Asia though Europe, Canada, and Africa account for hundreds of thousands of undocumented immigrants in the United States.
Illegal Alien Resident Population. Summary. About 5.0 million undocumented immigrants were residing in the United States in October 1996, with a range of about 4.6 to 5.4 million (See Table 1). The population was estimated to be growing. by about 275,000 each year, which is about 25,000 lower than the annual level of growth estimated.