SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
20	FOOD AND KINDRED PRODUCTS	5,280	2,251
31	LEATHER AND LEATHER PRODUCTS	2,795
34	FABRICATED METAL PRODUCTS	32
42	TRUCKING AND WAREHOUSING	2,691	1,196
80	HEALTH SERVICES	52	52
TOTAL		10,851	3,499

*(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.