IPUMS-International: Puerto Rico 1970 Census

IPUMS-International is an effort to inventory, preserve, harmonize, and disseminate census microdata from around the world. The project has collected the world's largest archive of publicly available census samples. The data are coded and documented consistently across countries and over time to facilitate comparative research. IPUMS-International makes these data available to qualified researchers free of charge through a web dissemination system. The IPUMS project is a collaboration of the Minnesota Population Center, National Statistical Offices, and international data archives. Major funding is provided by the U.S. National Science Foundation and the Demographic and Behavioral Sciences Branch of the National Institute of Child Health and Human Development. Additional support is provided by the University of Minnesota Office of the Vice President for Research, the Minnesota Population Center, and Sun Microsystems. Detailed metadata will be found in ipumsi_6.3_pr_1970_ddic.html within the Data Package. The related metadata describes the content of the extraction of the specified sample from the IPUMS International on-line extraction system.

IPUMS-International是一项旨在对全球人口普查微观数据（census microdata）进行编目、保存、标准化整合并予以传播的项目。该项目已构建起全球规模最大的公开可获取人口普查样本档案库。所有数据均遵循统一的编码与文档规范，覆盖不同国家与历史时段，以助力跨国比较研究。IPUMS-International通过网络分发系统，向符合资质的研究人员免费开放全部数据。IPUMS项目由明尼苏达人口中心（Minnesota Population Center）、各国国家统计办公室及国际数据档案机构联合发起。本项目主要资助方为美国国家科学基金会（U.S. National Science Foundation）与美国国立儿童健康与人类发展研究所人口与行为科学部。额外支持来自明尼苏达大学研究副校长办公室、明尼苏达人口中心以及太阳计算机系统公司（Sun Microsystems）。详细元数据（metadata）可在数据包内的ipumsi_6.3_pr_1970_ddic.html文件中查阅。相关元数据将说明从IPUMS International在线提取系统中提取的指定样本的具体内容。