SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	832	832
20	FOOD AND KINDRED PRODUCTS	190
23	APPAREL AND OTHER TEXTILE PRODUCTS	149	75
27	PRINTING AND PUBLISHING	27
30	RUBBER AND MISC. PLASTICS PRODUCTS	2,653
33	PRIMARY METAL INDUSTRIES	552
35	MACHINERY, EXCEPT ELECTRICAL	322
36	ELECTRIC AND ELECTRONIC EQUIPMENT	10
42	TRUCKING AND WAREHOUSING	1,967	808
49	ELECTRIC, GAS, AND SANITARY SERVICES	498
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	989
TOTAL		8,189	1,715

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.