From page 11 of the source PDF: "Total includes all inmates held in local jails, state or federal prisons, or privately operated facilities. It does not include inmates held in U.S. territories (appendix table 3), military facilities (appendix table 3), in U.S. Immigration and Customs Enforcement facilities, in jails in Indian country (appendix table 3), or in juvenile facilities."

From page 7 of the source PDF: "In these data, adults are persons who are subject to the jurisdiction of an adult court or correctional agency. Persons age 17 or younger who were prosecuted in criminal court as if they were adults are considered adults, but persons age 17 or younger who were under the jurisdiction of a juvenile court or agency are excluded."