Historical Statistics on Prisoners in State and Federal institutions, Yearend 1925-1986: [United States]

This data collection supplies annual data on the size of the prison population and the size of the general population in the United States for the period 1925 to 1986. These yearend counts include tabulations for prisons in each of the 50 states and the District of Columbia, as well as the federal prisons, and are intended to provide a measure of the overall size of the prison population. The figures were provided from a voluntary reporting program in which each state, the District of Columbia, and the Federal Bureau of Prisons reported summary statistics as part of the statistical information on prison populations in the United States.

本数据集提供了1925年至1986年期间美国监狱人口规模与普通人口规模年度数据。年末统计数据包括各州及哥伦比亚特区的监狱统计，以及联邦监狱，旨在衡量监狱人口的整体规模。这些数据来源于一项自愿报告计划，各州、哥伦比亚特区及联邦监狱管理局均作为美国监狱人口统计信息的组成部分，上报了总结性统计数据。