SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	13,405
22	TEXTILE MILL PRODUCTS	1,685
28	CHEMICALS AND ALLIED PRODUCTS	7,195	644
30	RUBBER AND MISC. PLASTICS PRODUCTS	3,650	1,211
32	STONE, CLAY, AND GLASS PRODUCTS	2,823
33	PRIMARY METAL INDUSTRIES	509	364
34	FABRICATED METAL PRODUCTS	161	54
35	MACHINERY, EXCEPT ELECTRICAL	1,566	1,170
36	ELECTRIC AND ELECTRONIC EQUIPMENT	1,318	241
37	TRANSPORTATION EQUIPMENT	2,028	555
38	INSTRUMENTS AND RELATED PRODUCTS	24
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	393
44	WATER TRANSPORTATION	1,708
73	BUSINESS SERVICES	2,416	485
TOTAL		38,881	4,723

*(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.