Answer:
one , Asia , North America
Explanation:
Legal permanent residence or LPR are the non citizens of America but are immigrants who are authorized to stay permanently in America lawfully. They have the "green cards" which allow them to stay in America permanently.
America has seen a decrease in the number of people applying for lawful permanent resident form 2005 to 2013 year. But on average, every year more than 1 million people applied and got LPR in the US.
Most of the immigrants in the United States are from Asia belonging to India, Pakistan or China. People of large percentages also comes from the neighboring countries of Canada and Mexico also come as immigrants to the United States and settle there.