SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	4,843
15	GENERAL BUILDING CONTRACTORS	10,821
16	HEAVY CONSTRUCTION CONTRACTORS	4,540
17	SPECIAL TRADE CONTRACTORS	137,098	114
20	FOOD AND KINDRED PRODUCTS	20,134	7,595
21	TOBACCO MANUFACTURERS	2,32
22	TEXTILE MILL PRODUCTS	12,741	4,142
23	APPAREL AND OTHER TEXTILE PRODUCTS	47,278	44,658
24	LUMBER AND WOOD PRODUCTS	22,696	4,526
25	FURNITURE AND FIXTURES	15,399	2,675
26	PAPER AND ALLIED PRODUCTS	12,704	1,972
27	PRINTING AND PUBLISHING	42,419	7,504
28	CHEMICALS AND ALLIED PRODUCTS	15,164	3,795
29	PETROLEUM AND COAL PRODUCTS	11,196
30	RUBBER AND MISC. PLASTICS PRODUCTS	41,496	15,535
31	LEATHER AND LEATHER PRODUCTS	8,302	4,720
32	STONE, CLAY, AND GLASS PRODUCTS	2,340	381
33	PRIMARY METAL INDUSTRIES	3,166	522
34	FABRICATED METAL PRODUCTS	18,953	1,835
35	MACHINERY, EXCEPT ELECTRICAL	47,443	10,052
36	ELECTRIC AND ELECTRONIC EQUIPMENT	10,685	2,588
37	TRANSPORTATION EQUIPMENT	18,959	3,471
38	INSTRUMENTS AND RELATED PRODUCTS	11,706	2,984
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	13,129	6,450
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	569
42	TRUCKING AND WAREHOUSING	610
45	TRANSPORTATION BY AIR	8,093	61
49	ELECTRIC, GAS, AND SANITARY SERVICES	12,035	110
50	WHOLESALE TRADE - DURABLE GOODS	3,013	81
51	WHOLESALE TRADE - NONDURABLE GOODS	3,447	431
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	6,904
72	PERSONAL SERVICES	8,853	6,468
73	BUSINESS SERVICES	3,153	1,184
75	AUTO REPAIR, SERVICES, AND GARAGES	19,308
76	MISCELLANEOUS REPAIR SERVICES	1,429
80	HEALTH SERVICES	98,906	81,578
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	1,643	164
TOTAL		703,496	215,598

*(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.