SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	3,736
13	OIL AND GAS EXTRACTION	32,118	97
15	GENERAL BUILDING CONTRACTORS	49,502	774
16	HEAVY CONSTRUCTION CONTRACTORS	143,417	5,467
17	SPECIAL TRADE CONTRACTORS	96,067	389
20	FOOD AND KINDRED PRODUCTS	46,340	3,665
21	TOBACCO MANUFACTURERS	1,28
22	TEXTILE MILL PRODUCTS	25,405	7,835
23	APPAREL AND OTHER TEXTILE PRODUCTS	11,268	7,807
24	LUMBER AND WOOD PRODUCTS	31,654	259
25	FURNITURE AND FIXTURES	3,253
26	PAPER AND ALLIED PRODUCTS	12,153	159
27	PRINTING AND PUBLISHING	18,621	1,820
28	CHEMICALS AND ALLIED PRODUCTS	12,777	826
29	PETROLEUM AND COAL PRODUCTS	10,634
30	RUBBER AND MISC. PLASTICS PRODUCTS	8,464	426
31	LEATHER AND LEATHER PRODUCTS	110	44
32	STONE, CLAY, AND GLASS PRODUCTS	42,436	1,077
33	PRIMARY METAL INDUSTRIES	22,124	24
34	FABRICATED METAL PRODUCTS	28,298	3,177
35	MACHINERY, EXCEPT ELECTRICAL	26,912	1,923
36	ELECTRIC AND ELECTRONIC EQUIPMENT	12,515	1,951
37	TRANSPORTATION EQUIPMENT	13,976	360
38	INSTRUMENTS AND RELATED PRODUCTS	1,207
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	6,612	1,038
40	RAILROAD TRANSPORTATION	7,704	65
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	37,933	17,332
42	TRUCKING AND WAREHOUSING	95,530	1,204
44	WATER TRANSPORTATION	1,637
45	TRANSPORTATION BY AIR	44,038	1,739
46	PIPE LINES, EXCEPT NATURAL GAS	527
47	TRANSPORTATION SERVICES	172
48	COMMUNICATION	38,119	878
49	ELECTRIC, GAS, AND SANITARY SERVICES	48,281	1,201
50	WHOLESALE TRADE - DURABLE GOODS	57,154	363
51	WHOLESALE TRADE - NONDURABLE GOODS	17,007
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	4,744	890
72	PERSONAL SERVICES	13,746	1,689
73	BUSINESS SERVICES	26,106	3,913
75	AUTO REPAIR, SERVICES, AND GARAGES	17,806	509
76	MISCELLANEOUS REPAIR SERVICES	4,898
80	HEALTH SERVICES	5,931	2,238
TOTAL		1,082,217	71,142

*(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.