SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	13,362
15	GENERAL BUILDING CONTRACTORS	12,011
16	HEAVY CONSTRUCTION CONTRACTORS	600
17	SPECIAL TRADE CONTRACTORS	16,395
20	FOOD AND KINDRED PRODUCTS	8,247	1,303
22	TEXTILE MILL PRODUCTS	3,730	289
23	APPAREL AND OTHER TEXTILE PRODUCTS	5,814	3,195
24	LUMBER AND WOOD PRODUCTS	9,692	346
25	FURNITURE AND FIXTURES	14,436	3,097
26	PAPER AND ALLIED PRODUCTS	21,124	2,120
27	PRINTING AND PUBLISHING	19,212	3,942
28	CHEMICALS AND ALLIED PRODUCTS	28,436	3,624
29	PETROLEUM AND COAL PRODUCTS	3,251
30	RUBBER AND MISC. PLASTICS PRODUCTS	21,150	9,981
31	LEATHER AND LEATHER PRODUCTS	8,881	6,329
32	STONE, CLAY, AND GLASS PRODUCTS	3,522	384
33	PRIMARY METAL INDUSTRIES	5,108	43
34	FABRICATED METAL PRODUCTS	16,369	1,808
35	MACHINERY, EXCEPT ELECTRICAL	31,565	8,000
36	ELECTRIC AND ELECTRONIC EQUIPMENT	27,748	15,731
37	TRANSPORTATION EQUIPMENT	29,543	3,026
38	INSTRUMENTS AND RELATED PRODUCTS	25,454	9,884
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	4,305	825
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	914
42	TRUCKING AND WAREHOUSING	2,028	25
44	WATER TRANSPORTATION	1,708
45	TRANSPORTATION BY AIR	23,572	156
48	COMMUNICATION	5,517	29
49	ELECTRIC, GAS, AND SANITARY SERVICES	5,819	42
50	WHOLESALE TRADE - DURABLE GOODS	9,373	46
51	WHOLESALE TRADE - NONDURABLE GOODS	5,920	431
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	11,135
72	PERSONAL SERVICES	13,405	7,598
73	BUSINESS SERVICES	22,104	6,173
75	AUTO REPAIR, SERVICES, AND GARAGES	31,184	466
80	HEALTH SERVICES	41,055	30,366
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	759	246
TOTAL		504,448	119,505

*(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.