SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
27	PRINTING AND PUBLISHING	628	28
29	PETROLEUM AND COAL PRODUCTS	775	105
32	STONE, CLAY, AND GLASS PRODUCTS	2,156	268
33	PRIMARY METAL INDUSTRIES	5,672
35	MACHINERY, EXCEPT ELECTRICAL	608	11
36	ELECTRIC AND ELECTRONIC EQUIPMENT	438	146
37	TRANSPORTATION EQUIPMENT	130	5
38	INSTRUMENTS AND RELATED PRODUCTS	905	131
48	COMMUNICATION	9,394	36
73	BUSINESS SERVICES	6,474	1,301
80	HEALTH SERVICES	97	97
TOTAL		27,275	2,128

*(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.