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Codes and Frequencies

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BPL indicates whether persons were born in the United States and, if not, the foreign country where they were born.


The 1994 data include only 41 categories for BPL, with all other answers coded into a residual "Other" category. For 1995 forward, three times as many categories are recognized, including categories for countries in the Middle East, Africa, and Oceania. The data must be recoded into the smaller number of categories available in 1994 to achieve comparability across time.


  • All persons.


Years Jan Feb ASEC Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1994 – 2023 X X X X X X X X X X X X X
2024 X X - X X X X - - - - - -


This variable has no flags.