SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	63
15	GENERAL BUILDING CONTRACTORS	2,653
16	HEAVY CONSTRUCTION CONTRACTORS	386
17	SPECIAL TRADE CONTRACTORS	16,444	159
20	FOOD AND KINDRED PRODUCTS	16,668	5,074
21	TOBACCO MANUFACTURERS	7
22	TEXTILE MILL PRODUCTS	5,499	1,919
24	LUMBER AND WOOD PRODUCTS	4,268	246
25	FURNITURE AND FIXTURES	3,922	123
26	PAPER AND ALLIED PRODUCTS	1,636
27	PRINTING AND PUBLISHING	2,296
28	CHEMICALS AND ALLIED PRODUCTS	7,811	2,741
29	PETROLEUM AND COAL PRODUCTS	403
30	RUBBER AND MISC. PLASTICS PRODUCTS	3,596	1,042
31	LEATHER AND LEATHER PRODUCTS	365	235
32	STONE, CLAY, AND GLASS PRODUCTS	291
33	PRIMARY METAL INDUSTRIES	540
34	FABRICATED METAL PRODUCTS	8,519	436
35	MACHINERY, EXCEPT ELECTRICAL	21,043	989
36	ELECTRIC AND ELECTRONIC EQUIPMENT	3,582	1,211
37	TRANSPORTATION EQUIPMENT	20,588	926
38	INSTRUMENTS AND RELATED PRODUCTS	4,120	2,524
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	3,198	148
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	3,897
42	TRUCKING AND WAREHOUSING	499
44	WATER TRANSPORTATION	2,208	244
45	TRANSPORTATION BY AIR	1,919
47	TRANSPORTATION SERVICES	1,333	1,075
48	COMMUNICATION	34
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,314	87
50	WHOLESALE TRADE - DURABLE GOODS	455	46
73	BUSINESS SERVICES	2,260	282
75	AUTO REPAIR, SERVICES, AND GARAGES	5,246
80	HEALTH SERVICES	3,718	1,865
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	1,643	164
TOTAL		155,487	21,536

*(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.