SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
27	PRINTING AND PUBLISHING	3,114	108
28	CHEMICALS AND ALLIED PRODUCTS	240	80
29	PETROLEUM AND COAL PRODUCTS	322
34	FABRICATED METAL PRODUCTS	373	57
35	MACHINERY, EXCEPT ELECTRICAL	41	21
37	TRANSPORTATION EQUIPMENT	115	22
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	191
45	TRANSPORTATION BY AIR	131
73	BUSINESS SERVICES	222	109
TOTAL		4,750	397

*(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.