SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	19,213
15	GENERAL BUILDING CONTRACTORS	42,134	188
16	HEAVY CONSTRUCTION CONTRACTORS	16,126	85
17	SPECIAL TRADE CONTRACTORS	102,114	491
20	FOOD AND KINDRED PRODUCTS	8,936	45
21	TOBACCO MANUFACTURERS	1,50
22	TEXTILE MILL PRODUCTS	10,782	694
23	APPAREL AND OTHER TEXTILE PRODUCTS	8,861	6,891
24	LUMBER AND WOOD PRODUCTS	17,379	2,117
25	FURNITURE AND FIXTURES	14,758	2,512
26	PAPER AND ALLIED PRODUCTS	22,348	2,844
27	PRINTING AND PUBLISHING	70,643	6,571
28	CHEMICALS AND ALLIED PRODUCTS	21,960	1,100
29	PETROLEUM AND COAL PRODUCTS	5,299	112
30	RUBBER AND MISC. PLASTICS PRODUCTS	11,789	3,517
31	LEATHER AND LEATHER PRODUCTS	919	192
32	STONE, CLAY, AND GLASS PRODUCTS	15,069	781
33	PRIMARY METAL INDUSTRIES	19,765	307
34	FABRICATED METAL PRODUCTS	51,236	2,691
35	MACHINERY, EXCEPT ELECTRICAL	94,810	13,839
36	ELECTRIC AND ELECTRONIC EQUIPMENT	17,288	4,062
37	TRANSPORTATION EQUIPMENT	76,143	5,419
38	INSTRUMENTS AND RELATED PRODUCTS	6,829	1,235
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	16,121	2,607
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	5,194
42	TRUCKING AND WAREHOUSING	7,559
44	WATER TRANSPORTATION	16,832	332
45	TRANSPORTATION BY AIR	32,024	476
48	COMMUNICATION	5,337
49	ELECTRIC, GAS, AND SANITARY SERVICES	32,725
50	WHOLESALE TRADE - DURABLE GOODS	14,862
51	WHOLESALE TRADE - NONDURABLE GOODS	9,676	905
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	5,628	427
72	PERSONAL SERVICES	31,690	19,474
73	BUSINESS SERVICES	15,171	3,066
75	AUTO REPAIR, SERVICES, AND GARAGES	25,707
76	MISCELLANEOUS REPAIR SERVICES	2,597
80	HEALTH SERVICES	13,867	5,113
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	2,287	164
TOTAL		893,174	88,253

*(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.