SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	3,990
20	FOOD AND KINDRED PRODUCTS	528
23	APPAREL AND OTHER TEXTILE PRODUCTS	177
26	PAPER AND ALLIED PRODUCTS	303
28	CHEMICALS AND ALLIED PRODUCTS	14
33	PRIMARY METAL INDUSTRIES	243
34	FABRICATED METAL PRODUCTS	2,831	40
35	MACHINERY, EXCEPT ELECTRICAL	1,749	52
36	ELECTRIC AND ELECTRONIC EQUIPMENT	348
37	TRANSPORTATION EQUIPMENT	1,707	3
40	RAILROAD TRANSPORTATION	44
42	TRUCKING AND WAREHOUSING	1,666
48	COMMUNICATION	2,013	387
50	WHOLESALE TRADE - DURABLE GOODS	722
TOTAL		16,335	483

*(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.