SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	3,379
15	GENERAL BUILDING CONTRACTORS	45
17	SPECIAL TRADE CONTRACTORS	9,994
20	FOOD AND KINDRED PRODUCTS	394
24	LUMBER AND WOOD PRODUCTS	1,031
27	PRINTING AND PUBLISHING	1,782
28	CHEMICALS AND ALLIED PRODUCTS	3,963	2,820
30	RUBBER AND MISC. PLASTICS PRODUCTS	19,229	12,254
31	LEATHER AND LEATHER PRODUCTS	1,510	913
32	STONE, CLAY, AND GLASS PRODUCTS	804
33	PRIMARY METAL INDUSTRIES	2,865
34	FABRICATED METAL PRODUCTS	6,069
35	MACHINERY, EXCEPT ELECTRICAL	3,500	290
36	ELECTRIC AND ELECTRONIC EQUIPMENT	1,052	389
37	TRANSPORTATION EQUIPMENT	1,688	3
38	INSTRUMENTS AND RELATED PRODUCTS	1,646	1,256
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	1,269	1,129
42	TRUCKING AND WAREHOUSING	453
44	WATER TRANSPORTATION	685
45	TRANSPORTATION BY AIR	8,722	57
48	COMMUNICATION	215	29
49	ELECTRIC, GAS, AND SANITARY SERVICES	11,626
51	WHOLESALE TRADE - NONDURABLE GOODS	6,161	474
72	PERSONAL SERVICES	45
73	BUSINESS SERVICES	153	153
75	AUTO REPAIR, SERVICES, AND GARAGES	3,837
80	HEALTH SERVICES	1,337	807
TOTAL		93,453	20,573

*(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.