Nonemployer Statistics originate from tax return information of the
Internal Revenue Service.
The data are subject to nonsampling error such as errors of
self-classification by industry on tax forms, as well as errors
of response,
nonreporting and coverage.
Values provided by each firm are slightly modified to protect
the respondent's confidentiality.
For further information about methodology and data limitations, see
Survey Methodology.
For descriptions of column headings and rows (industries),
click on the appropriate underlined element in the table.
