SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	13,862
15	GENERAL BUILDING CONTRACTORS	44,783	641
16	HEAVY CONSTRUCTION CONTRACTORS	20,646	539
17	SPECIAL TRADE CONTRACTORS	109,256	562
20	FOOD AND KINDRED PRODUCTS	10,054	1,301
21	TOBACCO MANUFACTURERS	20
22	TEXTILE MILL PRODUCTS	11,112	1,749
23	APPAREL AND OTHER TEXTILE PRODUCTS	1,330	425
24	LUMBER AND WOOD PRODUCTS	6,424	1,528
25	FURNITURE AND FIXTURES	1,549	335
26	PAPER AND ALLIED PRODUCTS	10,355	881
27	PRINTING AND PUBLISHING	3,098	244
28	CHEMICALS AND ALLIED PRODUCTS	31,515	4,619
29	PETROLEUM AND COAL PRODUCTS	11,371	512
30	RUBBER AND MISC. PLASTICS PRODUCTS	30,581	9,201
31	LEATHER AND LEATHER PRODUCTS	3,024
32	STONE, CLAY, AND GLASS PRODUCTS	50,655	8,628
33	PRIMARY METAL INDUSTRIES	40,568	273
34	FABRICATED METAL PRODUCTS	46,678	3,786
35	MACHINERY, EXCEPT ELECTRICAL	73,279	7,943
36	ELECTRIC AND ELECTRONIC EQUIPMENT	35,215	12,045
37	TRANSPORTATION EQUIPMENT	38,697	2,231
38	INSTRUMENTS AND RELATED PRODUCTS	11,073	2,694
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	9,172	2,739
42	TRUCKING AND WAREHOUSING	4,071
44	WATER TRANSPORTATION	3,509
45	TRANSPORTATION BY AIR	10,193	69
49	ELECTRIC, GAS, AND SANITARY SERVICES	11,236	173
50	WHOLESALE TRADE - DURABLE GOODS	32,160	742
51	WHOLESALE TRADE - NONDURABLE GOODS	19,609	474
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	2,015
73	BUSINESS SERVICES	15,135	6,347
75	AUTO REPAIR, SERVICES, AND GARAGES	6,574
76	MISCELLANEOUS REPAIR SERVICES	5,787
80	HEALTH SERVICES	1,904	866
TOTAL		726,694	71,548

*(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.