"A legal permanent resident (LPR) or 'green card' recipient is defined by immigration law as a person who has been granted lawful permanent residence in the United States. Permanent resident status confers certain rights and responsibilities. For example, LPRs may live and work permanently anywhere in the United States, own property, and attend public schools, colleges, and universities. They may also join certain branches of the Armed Forces, and apply to become U.S. citizens if they meet certain eligibility requirements. This Office of Immigration Statistics Annual Flow Report presents information obtained from applications for LPR status on the number and characteristics of persons who became LPRs in the United States during 2008. In this report, years refer to fiscal years (October 1 to September 30). In 2008, a total of 1,107,126 persons became LPRs of the United States (see Table 1 and Figure 1). The majority of new LPRs (58 percent) already lived in the United States when they were granted lawful permanent residence. Nearly 65 percent were granted permanent residence based on a family relationship with a U.S. citizen or legal permanent resident of the United States. The leading countries of birth of new LPRs were Mexico (17 percent), China (7 percent), and India (6 percent)."
United States Department of Homeland Security: http://www.dhs.gov/