SA25 Footnotes

1/ The estimates of employment for 1969-74 are based on the 1967 Standard Industrial Classification (SIC). The estimates for 1975-87 are based on the 1972 SIC. The estimates for 1988-2001 are based on the 1987 SIC.
2/ Excludes limited partners.
3/ Under the 1972 SIC, ordnance was reclassified to four 2-digit industries: Fabricated metal products, electronic and other electric equipment, transportation equipment, and instruments and related products.
4/ Under the 1987 SIC, combined real estate, insurance, etc., was reclassified to four 2-digit industries: Nondepository credit institutions; insurance agents, brokers, and services; real estate; and legal services.
5/ Social services was first recognized under the 1972 SIC, so estimates for 1969-74 do not exist.
6/ Engineering and management services was first recognized under the 1987 SIC, so estimates for 1969-87 do not exist.
(D) Not shown to avoid disclosure of confidential information, but the estimates for this item are included in the total.
(L) Less than 10 jobs, but the estimates for this item are included in the total.
(NA) Data not available for this year.
(NM) Not meaningful.
Last updated: September 20, 2010 - revised estimates for 2001.