SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
20	FOOD AND KINDRED PRODUCTS	1,010	67
21	TOBACCO MANUFACTURERS	16
27	PRINTING AND PUBLISHING	460
28	CHEMICALS AND ALLIED PRODUCTS	397	51
32	STONE, CLAY, AND GLASS PRODUCTS	560	24
33	PRIMARY METAL INDUSTRIES	3,041
36	ELECTRIC AND ELECTRONIC EQUIPMENT	857	249
37	TRANSPORTATION EQUIPMENT	142	32
38	INSTRUMENTS AND RELATED PRODUCTS	12,967	3,842
45	TRANSPORTATION BY AIR	69
49	ELECTRIC, GAS, AND SANITARY SERVICES	19,659	683
73	BUSINESS SERVICES	999
80	HEALTH SERVICES	8,491	5,906
TOTAL		48,821	10,858

*(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.