SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
16	HEAVY CONSTRUCTION CONTRACTORS	1,711	10
17	SPECIAL TRADE CONTRACTORS	73
20	FOOD AND KINDRED PRODUCTS	705
21	TOBACCO MANUFACTURERS	1,59
22	TEXTILE MILL PRODUCTS	127
26	PAPER AND ALLIED PRODUCTS	1,647
27	PRINTING AND PUBLISHING	85
28	CHEMICALS AND ALLIED PRODUCTS	1,036	31
30	RUBBER AND MISC. PLASTICS PRODUCTS	424
33	PRIMARY METAL INDUSTRIES	1,840	28
34	FABRICATED METAL PRODUCTS	4,285	21
35	MACHINERY, EXCEPT ELECTRICAL	12,486	225
36	ELECTRIC AND ELECTRONIC EQUIPMENT	9,029	1,793
37	TRANSPORTATION EQUIPMENT	2,332	26
38	INSTRUMENTS AND RELATED PRODUCTS	3,420	126
42	TRUCKING AND WAREHOUSING	122
45	TRANSPORTATION BY AIR	55
73	BUSINESS SERVICES	494
TOTAL		41,463	2,259

*(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.