SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	6,760	50
15	GENERAL BUILDING CONTRACTORS	12,039	463
16	HEAVY CONSTRUCTION CONTRACTORS	15,607	570
17	SPECIAL TRADE CONTRACTORS	15,442	77
20	FOOD AND KINDRED PRODUCTS	79,675	20,620
21	TOBACCO MANUFACTURERS	1,40
22	TEXTILE MILL PRODUCTS	14,558	4,165
23	APPAREL AND OTHER TEXTILE PRODUCTS	6,763	5,462
24	LUMBER AND WOOD PRODUCTS	6,238	171
25	FURNITURE AND FIXTURES	691
26	PAPER AND ALLIED PRODUCTS	18,859	957
27	PRINTING AND PUBLISHING	44,034	5,513
28	CHEMICALS AND ALLIED PRODUCTS	16,436	4,715
29	PETROLEUM AND COAL PRODUCTS	5,823
30	RUBBER AND MISC. PLASTICS PRODUCTS	3,121	1,273
31	LEATHER AND LEATHER PRODUCTS	786
32	STONE, CLAY, AND GLASS PRODUCTS	4,538	523
33	PRIMARY METAL INDUSTRIES	12,006	224
34	FABRICATED METAL PRODUCTS	43,198	5,946
35	MACHINERY, EXCEPT ELECTRICAL	72,264	5,142
36	ELECTRIC AND ELECTRONIC EQUIPMENT	19,685	5,505
37	TRANSPORTATION EQUIPMENT	52,941	2,514
38	INSTRUMENTS AND RELATED PRODUCTS	14,859	5,676
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	11,179	2,589
40	RAILROAD TRANSPORTATION	1,526	392
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	727
42	TRUCKING AND WAREHOUSING	18,102	1,774
44	WATER TRANSPORTATION	172
45	TRANSPORTATION BY AIR	20,046	308
47	TRANSPORTATION SERVICES	86
48	COMMUNICATION	4,101	754
49	ELECTRIC, GAS, AND SANITARY SERVICES	15,193	353
50	WHOLESALE TRADE - DURABLE GOODS	15,730	5,217
51	WHOLESALE TRADE - NONDURABLE GOODS	5,507
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	29,075	2,819
72	PERSONAL SERVICES	65,269	38,467
73	BUSINESS SERVICES	134,518	55,958
75	AUTO REPAIR, SERVICES, AND GARAGES	29,470	235
76	MISCELLANEOUS REPAIR SERVICES	7,459
80	HEALTH SERVICES	145,064	97,149
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	733	365
TOTAL		971,688	275,947

*(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.