Codes and Frequencies
Principal/central city vs balance status - 2004_05-2019_10
Unicon Corporation made the following notes about this variable:
With the introduction of new geographic codes in May 2004, the concept of MSA has been replaced by CBSA, and central city has been replaced by principal city. In June-August, 1995 hhid was being changed to the new format. The Census deliberately presented only a 5 digit ID in these months to make it impossible to identify individuals. Most geographic identifiers were also set to '-1' to insure confidentiality. Records in these 3 months cannot be matched to other months.
- All households.
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