SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
24	LUMBER AND WOOD PRODUCTS	5,121	3,073
28	CHEMICALS AND ALLIED PRODUCTS	92
34	FABRICATED METAL PRODUCTS	92
35	MACHINERY, EXCEPT ELECTRICAL	2,794
36	ELECTRIC AND ELECTRONIC EQUIPMENT	813	324
37	TRANSPORTATION EQUIPMENT	9,889	2,326
38	INSTRUMENTS AND RELATED PRODUCTS	83
45	TRANSPORTATION BY AIR	795
73	BUSINESS SERVICES	1,732
80	HEALTH SERVICES	297	169
TOTAL		21,708	5,892

*(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.