Original sentence: Illegal immigrants in Argentina are estimated at 50,000 to 2,500,000
Edited sentence: Illegal immigrants in Argentina are estimated at 50,000 to 2,500,000.. Illegal immigration has been a recent factor in Argentine demographics.Most illegal immigrants come from Bolivia and Paraguay, countries which border Argentina to the north.Smaller numbers arrive from Peru, Ecuador and Romania.The Argentine government estimates that 750,000 inhabitants lack official documents and has launched a program called Patria Grande ("Great Homeland") to encourage illegal immigrants to regularize their status; so far over 670,000 applications have been processed under the program