SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	3,754	251
30	RUBBER AND MISC. PLASTICS PRODUCTS	10,574	7,706
34	FABRICATED METAL PRODUCTS	838	559
35	MACHINERY, EXCEPT ELECTRICAL	160
36	ELECTRIC AND ELECTRONIC EQUIPMENT	1,279	785
37	TRANSPORTATION EQUIPMENT	1,356
38	INSTRUMENTS AND RELATED PRODUCTS	1,429	1,048
45	TRANSPORTATION BY AIR	5,315
72	PERSONAL SERVICES	32,414	23,164
73	BUSINESS SERVICES	2,576	856
75	AUTO REPAIR, SERVICES, AND GARAGES	1,361
TOTAL		61,057	34,369

*(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.