Immigrants Admitted to the United States, Federal Fiscal Years 1972-2000

This data collection contains information on the characteristics of all aliens who became legal permanent residents of the United States between fiscal years 1972-2000 (October 1971 through September 2000). The dataset is a merged series on ICPSR, titled Immigrants Admitted to the United States Series. Data are presented for two types of immigrants. The first category, New Arrivals, arrived from outside the United States with valid immigration visas issued by the United States Immigration and Naturalization Service. The second category, those who adjusted status, were already in the United States with temporary status and were adjusted to legal permanent residence through petition to the United States Immigration and Naturalization Service. Variables include port of entry, month and year of admission, class of admission, and state and area to which the immigrants were admitted. Demographic information such as age, sex, marital status, occupation, country of birth, country of last permanent residence, and nationality is also provided. Other created variables include further demographic information, such as student status, temporary worker, visitor, and more.

本数据集收录了1972至2000财政年度（1971年10月至2000年9月）间成为美国合法永久居民的各类外星人的特征信息。该数据集为ICPSR上的合并系列，标题为《美国接纳移民系列》。数据呈现了两种类型移民的情况。第一类，新到移民，他们持由美国移民局和归化局签发的有效移民签证从美国境外抵达。第二类，调整状态者，他们已在美国持有临时状态，并通过向美国移民局和归化局提出申请，调整为合法永久居民。变量包括入境港口、入境月份和年份、入境类别、移民被接纳的州和地区。同时提供了人口统计信息，如年龄、性别、婚姻状况、职业、出生国、最后永久居住国和国籍。此外，还创建了其他变量，包括更详细的人口统计信息，如学生状态、临时工人、游客等。