SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	1,074
15	GENERAL BUILDING CONTRACTORS	24,111	208
16	HEAVY CONSTRUCTION CONTRACTORS	4,555
17	SPECIAL TRADE CONTRACTORS	14,173	213
20	FOOD AND KINDRED PRODUCTS	4,864
21	TOBACCO MANUFACTURERS	2
22	TEXTILE MILL PRODUCTS	1,965	15
23	APPAREL AND OTHER TEXTILE PRODUCTS	4,825	2,858
24	LUMBER AND WOOD PRODUCTS	1,167	101
25	FURNITURE AND FIXTURES	880
26	PAPER AND ALLIED PRODUCTS	4,264
27	PRINTING AND PUBLISHING	647	20
28	CHEMICALS AND ALLIED PRODUCTS	5,811	107
29	PETROLEUM AND COAL PRODUCTS	56
30	RUBBER AND MISC. PLASTICS PRODUCTS	5,259
31	LEATHER AND LEATHER PRODUCTS	520
32	STONE, CLAY, AND GLASS PRODUCTS	22,881	4,184
33	PRIMARY METAL INDUSTRIES	11,706	29
34	FABRICATED METAL PRODUCTS	8,192	540
35	MACHINERY, EXCEPT ELECTRICAL	28,640	694
36	ELECTRIC AND ELECTRONIC EQUIPMENT	6,075	1,320
37	TRANSPORTATION EQUIPMENT	6,732	3
38	INSTRUMENTS AND RELATED PRODUCTS	3,325	789
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	4,002	800
40	RAILROAD TRANSPORTATION	218
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	414
42	TRUCKING AND WAREHOUSING	1,197
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,479
50	WHOLESALE TRADE - DURABLE GOODS	2,527
51	WHOLESALE TRADE - NONDURABLE GOODS	6,161	474
72	PERSONAL SERVICES	32
73	BUSINESS SERVICES	14,058	11,133
75	AUTO REPAIR, SERVICES, AND GARAGES	11,024
76	MISCELLANEOUS REPAIR SERVICES	2,401
80	HEALTH SERVICES	7,891	4,430
TOTAL		216,145	27,918

*(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.