SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
29	PETROLEUM AND COAL PRODUCTS	725
33	PRIMARY METAL INDUSTRIES	2,060
34	FABRICATED METAL PRODUCTS	308
35	MACHINERY, EXCEPT ELECTRICAL	1,613
36	ELECTRIC AND ELECTRONIC EQUIPMENT	672	672
37	TRANSPORTATION EQUIPMENT	1,205
TOTAL		6,582	672

*(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.