SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
20	FOOD AND KINDRED PRODUCTS	101	33
21	TOBACCO MANUFACTURERS	1
24	LUMBER AND WOOD PRODUCTS	666
26	PAPER AND ALLIED PRODUCTS	45
28	CHEMICALS AND ALLIED PRODUCTS	1,277	518
29	PETROLEUM AND COAL PRODUCTS	3,214	462
33	PRIMARY METAL INDUSTRIES	352	58
34	FABRICATED METAL PRODUCTS	353	76
35	MACHINERY, EXCEPT ELECTRICAL	50
36	ELECTRIC AND ELECTRONIC EQUIPMENT	14
37	TRANSPORTATION EQUIPMENT	236	5
38	INSTRUMENTS AND RELATED PRODUCTS	174
49	ELECTRIC, GAS, AND SANITARY SERVICES	2,233	173
73	BUSINESS SERVICES	1,294	305
80	HEALTH SERVICES	20,166	13,275
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	730	365
TOTAL		30,922	15,271

*(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.