Notes and Cautions

U.S. Department of Commerce

Census Bureau economic data are collected, processed and published in different ways.

Data users need to be aware of certain details before using data from multiple sources.

Read these notes and cautions before using economic census and other economic data.

Definition Changes - changes to industry classification, geographic boundaries and data fields
Different Data Sources - comparability of industries, industry coverage, business coverage and data sources
Different Methodologies - different methods of sampling, classification and disclosure limitation
Data Manipulation - potential issues when manipulating data

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Source: U.S. Census Bureau | 2007 Economic Census | Last Revised: November 19, 2012