SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	974	78
16	HEAVY CONSTRUCTION CONTRACTORS	3,396	110
17	SPECIAL TRADE CONTRACTORS	31,409
20	FOOD AND KINDRED PRODUCTS	7,489	42
21	TOBACCO MANUFACTURERS	12
24	LUMBER AND WOOD PRODUCTS	1,049	7
25	FURNITURE AND FIXTURES	339	72
26	PAPER AND ALLIED PRODUCTS	2,518	3
27	PRINTING AND PUBLISHING	31
28	CHEMICALS AND ALLIED PRODUCTS	4,842	26
29	PETROLEUM AND COAL PRODUCTS	4,310	139
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,414	75
33	PRIMARY METAL INDUSTRIES	5,194	86
34	FABRICATED METAL PRODUCTS	54,730	4,338
35	MACHINERY, EXCEPT ELECTRICAL	94,653	1,825
36	ELECTRIC AND ELECTRONIC EQUIPMENT	14,092	2,420
37	TRANSPORTATION EQUIPMENT	27,087	2,306
38	INSTRUMENTS AND RELATED PRODUCTS	19,008	5,034
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	5,783	1,232
42	TRUCKING AND WAREHOUSING	3,593
45	TRANSPORTATION BY AIR	5,277	244
48	COMMUNICATION	1,069
49	ELECTRIC, GAS, AND SANITARY SERVICES	1,401
50	WHOLESALE TRADE - DURABLE GOODS	21,093	5,039
73	BUSINESS SERVICES	540
80	HEALTH SERVICES	675	21
TOTAL		312,092	23,096

*(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.