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Economic Census


business.census.gov

Symbols Glossary

Disclosure

In accordance with federal law governing census reports (Title 13 of the United States Code), no data are published that would disclose the operations of an individual establishment or business. In cases where the data must be withheld, the following symbol appears in place of the data:

  • D : Withheld to avoid disclosing data for individual companies; data are included in higher level totals

Employment Ranges

Used when the sales and other data must be withheld due to disclosure, but a range for the employment data can be shown. The following symbols are valid:

  • a : 0 to 19 employees
  • b : 20 to 99 employees
  • c : 100 to 249 employees
  • e : 250 to 499 employees
  • f : 500 to 999 employees
  • g : 1,000 to 2,499 employees
  • h : 2,500 to 4,999 employees
  • i : 5,000 to 9,999 employees
  • j : 10,000 to 24,999 employees
  • k : 25,000 to 49,999 employees
  • l : 50,000 to 99,999 employees
  • m : 100,000 employees or more

Data Quality

Used to identify data items with high imputation rate, high standard error, or other data quality concerns. The following symbols are valid:

  • * : Measure of sampling variability not shown since estimated data not published
  • - : Zero or rounds to zero
  • p : 10 to 19 percent estimated (represented as a superscript)
  • q : 20 to 29 percent estimated (represented as a superscript)
  • s : Sampling error exceeds 40 percent (represented as a superscript)
  • u : 80 to 89 percent reporting
  • v : 70 to 79 percent reporting
  • w : 60 to 69 percent reporting
  • t : 90 percent or more reporting
  • y : Less than 60 percent reporting
  • A : Standard error of 100 percent or more
  • Y : Disclosure withheld because of insufficient coverage of product lines
  • Z : Rounds to zero

Noise Infusion

A technique that marginally adjusts (perturbs) each respondent's data so that data for individual businesses can be camouflaged. This allows for the publication of cells that would otherwise have been suppressed. The following symbols are valid:

  • ^ : Noise infusion range not applicable
  • G : Low noise infusion
  • H : Medium noise infusion

Other Symbols

  • r : Revised (represented as a superscript)
  • S : Withheld because estimate did not meet publication standards
  • N : Not available or not comparable
  • Q : Revenue not collected at this level of detail for multiestablishment firms
  • X : Not applicable
Source: U.S. Census Bureau | Economic Planning and Coordination Division | 1-877-790-1876 | Last Revised: July 22, 2014