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Data Dictionary: ACS 2012 (1-Year Estimates)
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Data Source:U.S. Census Bureau
Universe: Universe: Housing Units
Variable Details
B98001. Unweighted Housing Unit Sample
Universe: Universe: Housing Units
B98001001Initial Addresses Selected
Percent base:
None - percentages not computed (variable is table universe)
Aggregation method:
Addition
Relevant Documentation:
Initially Selected Housing Unit Addresses
The number of addresses in each state and for the nation that were selected for the ACS sample for a particular year. Each year's sample is systematically divided into 12 monthly samples for ACS interviewing. This initial number includes addresses later determined to be commercial or nonexistent, as well as housing units that are not interviewed due to subsampling for personal visit follow-up, refusals or other reasons.

Housing Unit Final Interviews
The final number of interviews across all three modes of data collection for the ACS in a given year. This number includes occupied and vacant housing units that were interviewed by mail, telephone, or personal visit methods between January 1 - December 31. It excludes addresses determined to be nonexistent or commercial, and addresses not selected in the subsample for personal visit follow-up, and addresses that are not interviewed due to refusals or other reasons.

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