SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	304
29	PETROLEUM AND COAL PRODUCTS	966
34	FABRICATED METAL PRODUCTS	568	248
35	MACHINERY, EXCEPT ELECTRICAL	294	77
36	ELECTRIC AND ELECTRONIC EQUIPMENT	999	984
37	TRANSPORTATION EQUIPMENT	324	3
38	INSTRUMENTS AND RELATED PRODUCTS	492	439
48	COMMUNICATION	1,425
75	AUTO REPAIR, SERVICES, AND GARAGES	3,331
TOTAL		8,702	1,752

*(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.