SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	2,061	883
20	FOOD AND KINDRED PRODUCTS	1,740	808
28	CHEMICALS AND ALLIED PRODUCTS	2,051	351
34	FABRICATED METAL PRODUCTS	1,776	159
35	MACHINERY, EXCEPT ELECTRICAL	62
37	TRANSPORTATION EQUIPMENT	511	11
38	INSTRUMENTS AND RELATED PRODUCTS	77	61
45	TRANSPORTATION BY AIR	564
80	HEALTH SERVICES	3,294	2,998
TOTAL		12,136	5,272

*(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.