SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	20,624	50
15	GENERAL BUILDING CONTRACTORS	24,027	486
16	HEAVY CONSTRUCTION CONTRACTORS	26,695	549
17	SPECIAL TRADE CONTRACTORS	58,247
20	FOOD AND KINDRED PRODUCTS	24,928	642
21	TOBACCO MANUFACTURERS	51
22	TEXTILE MILL PRODUCTS	6,004	848
23	APPAREL AND OTHER TEXTILE PRODUCTS	1,655	921
24	LUMBER AND WOOD PRODUCTS	9,458	2,929
25	FURNITURE AND FIXTURES	13,209	5,356
26	PAPER AND ALLIED PRODUCTS	32,781	1,138
27	PRINTING AND PUBLISHING	73,631	11,307
28	CHEMICALS AND ALLIED PRODUCTS	16,600	776
29	PETROLEUM AND COAL PRODUCTS	43,529	1,147
30	RUBBER AND MISC. PLASTICS PRODUCTS	22,768	7,929
31	LEATHER AND LEATHER PRODUCTS	2,492	1,355
32	STONE, CLAY, AND GLASS PRODUCTS	18,822	680
33	PRIMARY METAL INDUSTRIES	47,868	551
34	FABRICATED METAL PRODUCTS	54,787	5,788
35	MACHINERY, EXCEPT ELECTRICAL	170,440	10,915
36	ELECTRIC AND ELECTRONIC EQUIPMENT	35,386	7,174
37	TRANSPORTATION EQUIPMENT	68,334	2,482
38	INSTRUMENTS AND RELATED PRODUCTS	22,280	6,451
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	6,440	703
40	RAILROAD TRANSPORTATION	436
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	4,982
42	TRUCKING AND WAREHOUSING	12,312	76
44	WATER TRANSPORTATION	2,318	244
45	TRANSPORTATION BY AIR	46,528	427
46	PIPE LINES, EXCEPT NATURAL GAS	4,190
47	TRANSPORTATION SERVICES	86
48	COMMUNICATION	2,237	625
49	ELECTRIC, GAS, AND SANITARY SERVICES	40,624	361
50	WHOLESALE TRADE - DURABLE GOODS	20,262	449
51	WHOLESALE TRADE - NONDURABLE GOODS	8,040
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	20,360	427
72	PERSONAL SERVICES	927	179
73	BUSINESS SERVICES	29,152	17,219
75	AUTO REPAIR, SERVICES, AND GARAGES	50,159
76	MISCELLANEOUS REPAIR SERVICES	12,392
80	HEALTH SERVICES	16,453	5,540
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	2,747	532
TOTAL		1,075,728	96,255

*(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.