SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
20	FOOD AND KINDRED PRODUCTS	4,059	1,824
28	CHEMICALS AND ALLIED PRODUCTS	9,081	1,314
29	PETROLEUM AND COAL PRODUCTS	293	56
35	MACHINERY, EXCEPT ELECTRICAL	159
36	ELECTRIC AND ELECTRONIC EQUIPMENT	610	44
37	TRANSPORTATION EQUIPMENT	57	26
38	INSTRUMENTS AND RELATED PRODUCTS	478
73	BUSINESS SERVICES	14,010	3,019
80	HEALTH SERVICES	2,594	1,692
TOTAL		31,341	7,975

*(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.