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Year of entry
All people born outside the United States were asked for the year in which they came to live in the U.S. This includes: people born in Puerto Rico and U.S. Island Areas; people born abroad of a U.S. citizen parent(s); and the foreign born.

Related terms:
Foreign born, Immigrants, Place of birth

Year structure built
The data on year structure built were obtained from both occupied and vacant housing units. Year structure built refers to when the building was first constructed, not when it was remodeled, added to, or converted. The data relate to the number of units built during the specified periods that were still in existence at the time of enumeration.

Related term:
Housing unit

Years of military service
This is a measure of the total amount of time a person has spent on active duty service in the U.S. Armed Forces. The measure excludes any breaks in active-duty service.

Related term:
Veteran status