SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	389
20	FOOD AND KINDRED PRODUCTS	2,947	2,860
27	PRINTING AND PUBLISHING	176	77
28	CHEMICALS AND ALLIED PRODUCTS	277
29	PETROLEUM AND COAL PRODUCTS	1,082
30	RUBBER AND MISC. PLASTICS PRODUCTS	10,981	7,319
35	MACHINERY, EXCEPT ELECTRICAL	463
37	TRANSPORTATION EQUIPMENT	383	14
42	TRUCKING AND WAREHOUSING	200	15
80	HEALTH SERVICES	441	25
TOTAL		17,338	10,312

*(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.