Frequently Asked Questions

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Nonemployer Statistics: Why do letters appear in some of the columns instead of numbers?

The Census Bureau uses disclosure symbols to replace data that is suppressed to protect the confidentiality and the integrity of the published data. When data does not meet publication standards, it is replaced with an 'S'. When data could potentially identify an individual business, it is replaced with a 'D'. Also, since 2007, all Nonemployer data have been published with an associated noise flag that indicates whether a cell has low or medium Noise applied relative to other data cells. Refer to the Nonemployer Methodology page for an explanation of the Noise Infusion Method used to protect published data.   


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