SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	2,061	883
28	CHEMICALS AND ALLIED PRODUCTS	435	145
38	INSTRUMENTS AND RELATED PRODUCTS	657	394
42	TRUCKING AND WAREHOUSING	299
73	BUSINESS SERVICES	1,161	305
80	HEALTH SERVICES	2,828	2,315
TOTAL		7,441	4,041

*(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.