SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	4,449
15	GENERAL BUILDING CONTRACTORS	15,508	453
16	HEAVY CONSTRUCTION CONTRACTORS	24,779	169
17	SPECIAL TRADE CONTRACTORS	34,594	141
20	FOOD AND KINDRED PRODUCTS	2,986
22	TEXTILE MILL PRODUCTS	259
23	APPAREL AND OTHER TEXTILE PRODUCTS	415
24	LUMBER AND WOOD PRODUCTS	538
25	FURNITURE AND FIXTURES	2,294	338
26	PAPER AND ALLIED PRODUCTS	11,678	844
27	PRINTING AND PUBLISHING	4,887	372
28	CHEMICALS AND ALLIED PRODUCTS	1,067	52
29	PETROLEUM AND COAL PRODUCTS	5,139	166
30	RUBBER AND MISC. PLASTICS PRODUCTS	5,737	410
32	STONE, CLAY, AND GLASS PRODUCTS	223
33	PRIMARY METAL INDUSTRIES	2,845
34	FABRICATED METAL PRODUCTS	4,907	1,464
35	MACHINERY, EXCEPT ELECTRICAL	7,984	558
36	ELECTRIC AND ELECTRONIC EQUIPMENT	665	135
37	TRANSPORTATION EQUIPMENT	5,894	324
38	INSTRUMENTS AND RELATED PRODUCTS	1,501	945
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	369	369
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	727
42	TRUCKING AND WAREHOUSING	3,254
44	WATER TRANSPORTATION	7,408
45	TRANSPORTATION BY AIR	12,056	1,710
48	COMMUNICATION	1,543
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,951	116
50	WHOLESALE TRADE - DURABLE GOODS	6,093
51	WHOLESALE TRADE - NONDURABLE GOODS	1,359
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	7,043
72	PERSONAL SERVICES	7,671	5,110
73	BUSINESS SERVICES	1,066
75	AUTO REPAIR, SERVICES, AND GARAGES	22,999
76	MISCELLANEOUS REPAIR SERVICES	1,850
80	HEALTH SERVICES	9,594	5,707
TOTAL		226,330	19,383

*(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.