SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	13,319	2,898
20	FOOD AND KINDRED PRODUCTS	37,627	13,191
28	CHEMICALS AND ALLIED PRODUCTS	2,101	965
47	TRANSPORTATION SERVICES	473	86
73	BUSINESS SERVICES	233
80	HEALTH SERVICES	21,038	17,883
TOTAL		74,790	35,023

*(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.